I have two domains pointing to the same joomla 3 : example1.com (main domain) and example2.com. When I edit an article in front via the main domain, the drag & drop of an image works well with TinyMCE. When I connect from example2.com, I get an error 500 :
Call to undefined method Joomla\CMS\Document::addCustomTag() on this url: https://exemple2.com/fr/?option=com_media&task=file.upload&tmpl=component&xxxxxxxxxxxxxx=xxxxxxxxxxxxx&xxxxxxxxxxxxxxxxxxxxxxx=1&asset=image&format=json
Do you know how to solve this problem?
Thank you in advance,