NSP button SAVE and CLOSE don't work

Good day

I have a problem with NSP GK5 because the buttons save and close don't work, in all module with this component. Initially, the problem also concerned the global configuration, but when I changed the template administrator with Hathor, the problem with the global configuration was resolved. There remains the problem with NSP. I tried it with other PC, with tablet, but the problem continues. The rest of the modules, without NSP, work properly.
I started my installation with a version of joomla with built-in Slovenian language, version 3.2.0. Next, I installed the template Hotel Villa Bellucci (gk_hotel_J! 3) and all required extensions including NSP GK5 (gk_hotel_rest_files_J! 3).
The problem started when I changed the title of a module with NSP, I tried to save, and gave me back the page "The connection to the server has been canceled while the page was loading." From that moment all the modules NSP have had the same problem.
I have no idea what could be the problem
Help me please.
Thank you.

Hi

I'm pretty sure it's related to Your joomla installation, not a module itself. Please send me an access to joomla panel via forum's PM or to my mail [email protected] I'll look into it.

Hi

I've just been to Your admin panel and I see the problem. You need to switch Your joomla panel template to "Isis", the one You are using doesn't load javascript libraries needed for most of the modules to work properly.

Hi
I switch template to Isis but still not working.

Hi

I can see that after clicking "Save" site is showing "Connection reset" message. Is this the problem You are referring to ? I've clicked through panel and many other extensions are acting the same way. This may point that site has some broken files and re installation may be the best option here. It can also be a sign of a hack. Please contact Your hosting provider to check error logs with the error which is generated when joomla panel breaks. This message should point to a right direction to fix the problem.

Hi
I wanted to thank you for taking the time to me.
I do not understand what the problem is, installed on my PC with WampServer, all web site, everything works properly. What can be the cause of the malfunction of the module NSP GK5. What should I check? The .htaccess file I have not configured it can be the cause? Thanks for your help.

Hi

First I would check if Your server configuration meets joomla requirements.
If it does than I would overwrite all files with clean installation, just in case it's not because of a broken file or to get rid infected file in case it's because of a hack.