Your post above quotes a reply I gave to a user in the forum over 4 years ago (in this thread).

Do you have a problem with the WP-Juicebox?
If so, please describe the problem and post a link to your gallery's web page so that I can see the problem for myself and hopefully help further. Thank you.

This is due to your long backButtonText ("More Pascal RIBEN Galleries").
In Small Screen Mode (on mobile devices), the Back Button and Button Bar share the same horizontal space.
Space is reserved for the Back Button and, once this has been displayed, the remaining space is used for the Button Bar (which will wrap within the available space if necessary). This avoids the Back Button and Button Bar overlapping each other.
With your long backButtonText, there is enough space to the right of it (on your device) to display only one Button Bar icon (which is why it wraps to display all the icons in a single column).
If you were to reduce your backButtonText to something shorter (like "Home", for example) or use the 'home' icon (by setting backButtonUseIcon="TRUE"), then the Button Bar would have more space to display icons in a row.

@matthewswift

I understand your desire to try to adapt Juicebox-Pro to do something that you would like it to do (but that it was not designed to do). However, it looks like you may have unpacked the source code and, unfortunately, modifying the source code is not supported. This is noted in the FAQ below:
Does Juicebox-Pro include the source code?

Thank your for posting your suggestion in the Feature Request forum thread, though, where it will be seen by the developers who will at least consider it for inclusion in a future release (although I have no way of knowing which requests will be chosen for implementation).

(Incidentally, I'm not sure what might have changed between v1.5.0 and v1.5.1 to break your modification. Whatever the change was, it would have been made for the sake of functionality rather than to prevent users from adapting the software.)

Thanks again for making your suggestion known.

Just increase the inactivityTimeout value from its default value of '4' (seconds) in JuiceboxBuilder-Pro's 'Customize -> Main Image' section.

Alternatively, you can have the overlay never auto-hide by either setting inactivityTimeout to '0' or showImageOverlay (also in the 'Main Image' section) to 'ALWAYS'.

You could also display the Info Button on the gallery's Button Bar by setting showInfoButton to 'TRUE' (in the 'Button Bar' section) to allow visitors to your website to toggle the overlay on and off (by clicking the Info Button).

For reference, short descriptions of all configuration options can be found on the Config Options page.

It is likely that you have found a post referring to WP-Juicebox (the Juicebox plugin for WordPress) as this plugin has a file named 'config.php'.
However, if you are creating or editing a gallery with JuiceboxBuidler-Pro and do not want the image filename to be used as the image title (which is the default setting), then just go to 'Images -> Titles -> Use None' from the drop-down menu at the top (and then save your gallery on the 'Publish' tab).

@kuwaha

Do you get exactly the same error message as the original poster ("Code: 5100") or a different error message?

If you have not already done so, please try following the procedure noted above (to uninstall both JuiceboxBuilder-Lite and JuiceboxBuilder-Pro and then manually delete all the folders I listed before before attempting to install JuiceboxBuilder-Pro v1.5.1).

Have you also tried the additional suggestions, such as creating a new administrative user account and trying to install and run JuiceboxBuilder-Pro v1.5.1 from there?

If you continue to experience difficulties, please let me know how far you get into the procedure and what error message (if any) you encounter along the way.
Also, please let me know what operating system you use.

I'm glad you're making progress. Thank you for letting me know.

Unfortunately, there is no configuration option available to enable/disable captions. A NextGEN sourced gallery will use the 'alttext' as the image title and the 'description' as the image caption.
However, you can hide the entire caption area by setting captionPosition="NONE" (in the Pro Options text area).
Alternatively, if you want to hide just the image titles or the image captions, then you can do so with a quick edit to the plugin's 'config.php' file.
Just open the 'config.php' file in a plain text editor and:

(1) To hide the image titles, comment out line 95, changing:

$image_element->appendChild($title_element);

... to:

// $image_element->appendChild($title_element);

(2) To hide the image captions, comment out line 102, changing:

$image_element->appendChild($caption_element);

... to:

// $image_element->appendChild($caption_element);

(Please note that the line numbers above refer to the current version of WP-Juicebox, v1.5.1.)

The Splash Page takes the gallery dimensions (the galleryWidth and galleryHeight from the embedding code).
The image used for the Splash Page (by default the first image in the gallery or the splashImageUrl if set) is scaled to fill (rather than fit within) the Splash Page dimensions and, if the aspect ratio of the Splash Page does not match the aspect ratio of the image, then cropping will occur. However, the image should not be stretched. If it is, then it may be due to custom CSS (possibly from your WordPress theme).
At the moment, your gallery sets showSplashPage="NEVER" so I cannot see the Splash Page and investigate the problem.
However, I would check the CSS on your web page to see if there are any rules which are being applied to all images on the page and which the Splash Page image might be inheriting.
I hope this points you in the right direction.

If the 'Upgrade to Juicebox-Pro!' link is present, then you are running JuiceboxBuilder-Lite. (Also you can check whether you are running Lite or Pro by checking the splash page on running the application. The Splash Page will say either 'Welcome to JuiceboxBuilder-Lite' or 'Welcome to JuiceboxBuilder-Pro'.)

If you are having problems with Lite vs Pro and v1.5.0 vs v1.5.1, I'd recommend uninstalling all versions of JuiceboxBuilder on your system and reinstalling JuiceboxBuilder-Pro v1.5.1 (making sure that you use the installer from within the 'juicebox_pro_1.5.1.zip' file).

Uninstall on Mac: Delete the 'JuiceboxBuilder-Lite' and 'JuiceboxBuilder-Pro' files from the Applications folder and empty the Trash.
Uninstall on Windows: Use the uninstallers in the 'Control Panel -> Programs -> Uninstall a program...' list.

Note:
I've just upgraded Adobe AIR to v29.0 on my Windows 10 PC and both JuiceboxBuilder-Lite v.1.5.1 and JuiceboxBuilder-Pro v1.5.1 run correctly (with the drop-down menu visible at the top).

Please let me know how you get on and if you need any further assistance (and, also, please let me know what operating system you use).

I'm sorry to hear that you are having difficulties embedding your Juicebox gallery.
Hopefully my notes below will help.

You can certainly name the gallery folder whatever you like (as long as you use web-safe characters: uppercase and lowercase letters, decimal digits, hyphen, period, underscore, and tilde).

The gallery's 'index.html' file is simply a HTML file into which the gallery is embedded with no other content. Therefore, you can use the file to display the gallery on a page of its own. If you plan to embed the gallery into an existing web page alongside other content, then the gallery's 'index.html' file is actually redundant and you can safely delete it if you like.
If you use the regular embedding code (presented on JuiceboxBuilder's 'Publish' tab), then you'll be uploading the contents of the gallery folder to the directory containing the web page with the embedding code. If you already have a file named 'index.html', then you'll need to rename the gallery's 'index.html' file first (otherwise your own 'index.html' file will be overwritten). You can rename the gallery's 'index.html' file to whatever you like. (There are no references to it from any other gallery files.)
If you use the baseUrl method of embedding, then you'll be uploading the entire gallery folder (not just the contents) to your web server and the gallery's 'index.html' file will not clash with any other files named 'index.html' on your web server, although you could still rename the gallery's 'index.html' file if you like (or delete it if you don't need it).

If you uploaded the entire gallery folder to your root directory, then I should be able to view your gallery's 'config.xml' file here: https://www.faithgranger.com/karine_photo1/config.xml
However, going directly to that location in a browser results in an error 404.
Please double-check that your gallery folder is named 'karine_photo1' and that it has been uploaded correctly to your root directory.

If the gallery folder is present in the correct location on your web server, then the embedding code you posted should work fine.
However, when viewing the source code of your 'photos1.htm' page, there seems to be no Juicebox embedding code on the page at all (which is probably the root cause for the gallery not displaying).
Please double-check that the embedding code has been inserted correctly into your web page.

Essentially, your embedding code looks fine (as long as your 'karine_photo1' gallery folder is in the same directory as your 'photos1.htm' page).
Just make sure that your entire 'karine_photo1' gallery folder has been uploaded to your root directory and that the embedding code has been inserted into your 'photos1.htm' page.

If you continue to experience difficulties, then try this as a starting step.
Just upload the complete gallery folder (exactly as created by JuiceboxBuilder without renaming, moving or modifying any files) to your web server and open the gallery's 'index.html' page in your browser. You should see the gallery on a page of its own. (Please post the URL to your gallery's 'index.html' page so that I can be sure of the gallery's location on your web server.) This is the first step in embedding your gallery. After the gallery has successfully been uploaded to your web server, then the next step is to insert the embedding code into your web page.

Please let me know how you get on and if you need any further assistance.

When entering Juicebox-Pro configuration options into the Pro Options text area, be sure to enter each option on a line of its own and enclose the value in double-quotes (as noted in Step #4 here), for example:

enableLooping="TRUE"
stagePadding="20"
galleryTitlePosition="TOP"

Also, please note that Lite Options should be set via their own individual input fields in the plugin's interface (and not in the Pro Options text area).

Please post an example of something that you are entering into the Pro Options text area which is not being saved and I'll investigate further.

The buttonBarPosition configuration option allows you to position the Button Bar in the TOP area but this applies only to Large Screen Mode (there is no TOP area in Small Screen Mode where the Button Bar is always positioned on the overlay).
However, if you force Large Screen Mode to always be used on all devices and in all browsers (by setting screenMode="LARGE"), then the TOP area will still exist when the gallery is displayed on mobile devices and setting buttonBarPosition="TOP" should solve your problem.

No matter whether your gallery is being displayed in Small Screen Mode or Large Screen Mode, if you tap the main image (on a touch-enabled mobile device), the overlay (including the Button Bar and the caption area) will disappear (to leave just the image). Tapping the main image again will make the overlay reappear.
You can check it out in this demo gallery (when viewed on a mobile device): https://juicebox.net/demos/pro/default/

Please note that tapping the main image will not make the overlay disappear (in Small Screen Mode on a mobile device) if either:
(1) You set showInfoButton="TRUE" where tapping the Info Button on the Button Bar will make all of the overlay disappear (except for the Button Bar, which needs to be kept visible at all times so that the user can tap the Info Button again to make the rest of the overlay reappear).
... or:
(2) You set imageClickMode="OPEN_URL" where tapping the main image will open the image (or associated linkURL) in a new page of its own.

Essentially, if you are already setting screenMode="LARGE", then just set buttonBarPosition="TOP" to position the Button Bar in the reserved TOP area (where it will not overlap the main image).
Otherwise, in Touch Input Mode (on mobile devices), tapping the main image will toggle the overlay on and off (with the exceptions I mentioned above).

I hope this helps.

Thank you for posting your suggestion in the Feature Requests forum thread.

I hope you get on OK implementing my suggestion to use the Gallery Title as a link (if you decide to do so).
If you encounter any problems, then just let me know and I'll do my best to help you out.