Errors after migrating to Jooma 4

Okay

I'm on PHP 8.3.9
Would that have something to do with it?

I just tried it with 8.3.0 and don't see any fatal errors.
As I wrote before, the server error logs should tell you more as to where the error appears. You may have to ask your hoster for that.

I think I'm narrowing it down. I don't know what I clicked on, but I got this error:

Compile Error: Declaration of PlgSermonspeakerJwplayer7::onGetPlayer($context, &$player, $items, $config) must be compatible with SermonspeakerPluginPlayer::onGetPlayer($context, $player, $items, $config)

I also read in one of your replies that the player7 is not longer compatible and to use one your recommended.

HOW do I tell Joomla to not use player7 and to use the one you suggested? I cannot see in the settings for SermonSpeaker where to make that change?

Just uninstall the JWPlayer 7 plugin. You should see that one in the extension manager list.

SermonSpeaker will try with each of the installed player plugins. If the JW Player one isn't installed anymore, it will automatically find the Mediaplayer one, if installed.

YES!!!! That worked. Thank you.