Oh, this is where the discussion started.
As said in the appropriate
support topic, your installation is broken, yet you insist that the extension is the problem.
I bet you have not even tested the more updated (non-validated) version for phpBB 3.2.x I commented in that topic.
The extension was compatible with 3.3.0 even before it was released, because I test alpha and beta version of phpBB to make all the needed changes upfront.
It doesn't have issues with the YML files (since the very first stable release, for phpBB 3.2.x), nor with PHP itself, as my extensions are being tested with bleeding edge versions, including PHP 7.3, 7.4 and 8.0 (dev), even before 3.3.0 was released.
If you really have 3.3.0, the
PHPBB_VERSION
constant from the
includes/constants.php
file must have
3.3.0
as its value.
But I'm almost sure that's not the case for you. Why? Because you are not the first person that, with a broken phpBB installation, blame on of my extensions because of a bad upgrade, and because I've had been hired to fix that kind of problems (along with others).
Anyways, I don't thing this is the right place to discuss about extensions.