@truonglv I get the following error when creating/editing a group post via the API.
ErrorException: [E_DEPRECATED] trim(): Passing null to parameter #1 ($string) of type string is deprecated
src/addons/Truonglv/Groups/Service/Comment/Preparer.php:181...
I have this problem too. Does anyone know if this has been reported as a bug? I couldn't find it. The issue appears to be that the hasPermission() method in App.php has the return type set to bool so the value of the maxCreateGroups permission (in this case -1) is cast to a bool and that results...