If everything was working OK and now it is not, something must have changed to cause this problem.
Can you remember making any changes to your computer between it working and now not working?
Did you install any other software or updates which may be causing the problem?
Are you able to use System Restore to wind back your system to a time when the problem did not happen?
I have a problem, suddenly I cannot create new albums or open existing ones.
Do you mean that the 'New Gallery' and 'Open Gallery' buttons are ineffective or is there some other problem?
Try running JuiceboxBuilder-Pro with administrative rights (right-click the shortcut and select 'Run as administrator').
If this does not help, try the following.
Uninstall both JuiceboxBuilder-Pro and Adobe AIR and then manually delete the C:\Users\username\AppData\Roaming\Adobe\AIR\ELS\JuiceboxBuidler-Pro folder (as before).
Now, reinstall both Adobe AIR and JuiceboxBuilder-Pro using the right-click 'Run as administrator' option (rather than just double-clicking the installation files).
If this does not help, create a new Administrator User Account and try installing and using JuiecboxBulder-Pro from this account/
Hopefully one of these suggestions will help.