Dear developers, I have around 80 clients for which I use Themler as a template building software. Now that the LTR-Support for Joomla 3 ends in autumn 2023, I want to update my clients' pages to...

Customer is using a older version of Themler and exported to a template. Now we're updating to Joomla 3.9 and there is some "Require Once Toolbar" bugs in the older Themler version. Can someone point...