Probleme lightroom classique

1 de ces fichiers ne peut pas être placé dans la corbeille

1 of these files cannot be placed in the trash

Where you perhaps deleting a batch of photos?

I see you have a MAC, not a Windows PC, so you probably do not have the Logitech Options Plugin installed. BUT???

Do you have the Logitech Options plugin (LogiOptions) installed?

Searching the forum for "attempt to index a nil value" finds lots of correct answers

https://community.adobe.com/t5/forums/searchpage/tab/message?advanced=false&allow_punctuation=false&filter=location&location=category:ct-lightroom-classic&q=attempt%20to%20index%20a%20null%20value