I installed Extension:StructuredDiscussions just a month ago, and it was working successfully.
Users were able to add topics and reply. But now, any of these actions is resulting in a pink banner above the page which says-Internal Server Error.
All the previously added topics & replies are intact and are appearing at their places without any error.
I have also configured --> $wgShowExceptionDetails = true; But nothing more is appearing, just the pink banner
Version info--> MediaWiki 1.32.2 PHP 7.2.18 (apache2handler) MySQL 5.7.26 ICU 63.1