When I click on Theme Editor in Design - Themes, it opens the new page but the side panel where the editing is done doesn't show and this error pops up:
ErrorOops, something went wrong (Internal Server Error). Please try again.
After talking with someone else from my hosting provider's support team, I got this:
I have taken a look at your site and I was able to find your error log. You do have error logging turned on, and it is putting your PHP errors into this file:
"/home/username/public_html/error_log", inside that file there are many lines of the same message "[26-Sep-2016 14:51:26 UTC] PHP Warning: PHP Startup: Unable to load dynamic library '/htscanner.so' - /htscanner.so: cannot open shared object file: No such file or directory in Unknown on line 0". This means that there is a file "htscanner.so" that is missing, and this is causing your problem with your cart.
I do have it enabled and it's generating reports but I can't tell if they're database-related. Here's the two that keep appearing (the blank lines are where I deleted what I think are sensitive info, i.e. license key, etc):
Just to update the conclusion on this topic: Much thanks to The Tool, it's been realized that the older, Basic themes are no longer available in CSC. So I switched to a responsive theme and am now able to use the Theme Editor.
Just to update the conclusion on this topic: Much thanks to The Tool, it's been realized that the older, Basic themes are no longer available in CSC. So I switched to a responsive theme and am now able to use the Theme Editor.
We fixed similar issue for one of our customers recently. The problem is caused by the reason that the theme editor tries to find colorpicker.tpl file from the store-front. But all theme editor files were moved to the backend templates in the latest versions. So we just copied the file from the backend template and it solved the issue. Hope this information will be useful for someone.