[HELP] Save, Save and Close Button Works, But Keep Loading

Joomla v 3.3.6 stable
PHP 5.5.38
k2 version 2.6.8

Just like the title. Save, Save & Close button not working properly. The article is updated but keep loading when saved.

I Installed copy of my site at my localhost and it works, but when I connect my computer to the internet, the Save button just loading with no end.
This is very strange for me, since I find no error at Console.

So, I testing it at another hosting, at this time, the console showed error like bellow:

[REMOVED]

At this hosting, the Save button is totally not working.


I dont understand. What should I do? Im struggling with this bug for months.

Thanks for any help.

If you've screenshots to share attach them directly. External links like to Google drive are not trusted, sorry.

Regarding your issue the save button is entirely JS based. If it's failing then you've a JS issue or the HTML form can't be found. If the form can't be found then you probably have a field adding a form inside a form (probably 3rd party plugin tab or a Custom HTML field). Disable all 3rd party installed plugins and see if issue goes away. If using custom backend template switch back to Joomla default backend template. If still not working begin unpublishing tabs 1 by 1 until issue goes away to see if it's a tabs contents doing it.