I did a search on my entire project and it didn’t find your_action_hook anywhere, nothing in the app.blade.php as well, I checked just in case.
It did ring a bell though so I looked it up and the first result is this -
Which I remember trying when I was setting up the site locally.
I can’t find it anywhere in my code though, strange!
Edit: I have the same error in my application log on my local machine, but the local version works ok.