Oops, an error occurred! on https://extensions.typo3.org/extension/event/

What was the cause of the issue?

I was looking for some events extension and wanted to check next one:

Then I opened its url: https://extensions.typo3.org/extension/event/

and got next issue:

what interesting... I only found it under that specific extension url, all other works..

Steps to reproduce

open url https://extensions.typo3.org/extension/event/

or go here https://extensions.typo3.org/?L=0&id=1&tx_solr%5Bq%5D=event and click on this extension

Output of error log

Add some screenshots