I quess it can't be updated to 1.4.4 without license renewal?
You can upgrade from v1.3.2 to the latest version (v1.4.4.2) free of charge.
Please see the 'Juicebox Upgrade Policy' on the Upgrading Juicebox support page.
Customers who have purchased Juicebox-Pro are eligible for free upgrades within the same major version number. For example if you buy version 1.0.0, all 1.x.x updates are provided free of charge.
I lost my download link, but i just requested a new one via the website.
That's exactly what to do. The admin team will find your purchase and send you a new download link.
For anyone else reading this post, the Download Link Request Form can be found here.
Do you happen to know which one to edit, perhaps?
It doesn't look like any of the entries you posted would be responsible for the problem you reported.
Try temporarily removing the .htaccess file completely (just rename the .htaccess file, check the WP-Juicebox functionality and then rename the .htaccess file back to its original name afterwards) to see if this helps. If it does help, then you'll know that there is an entry in the file which is responsible for the problem.
You might need some trial and error (removing portions of your .htaccess file bit by bit) to see if you can find the code causing the problem.
Perhaps you could post the full content of your .htaccess file so that I can take a look at all the code.
As my site got hacked more then once, i tightened security using SSL and some WP_ security plugins.
The .htaccess file may have been built up by your security plugins.
Rather than check and edit the .htaccess file manually, you could try to figure out which plugin has added the code causing the problem.
Try temporarily deactivating all your security plugins and reactivate them one-by-one, checking the WP-Juicebox functionality after each one, to see if you can find a conflicting plugin.