Photoshop not saving due to error

Photoshop won't save any documents due to error (as per screenshot). I have tried in 16 bit mode, and 8 bit mode. I have given photoshop full disk access. It worked for a while, but now the issue has returned. Everytime I want to save, I have to save as a new docuement every time - uses a lot of space and quite annoying to do so.  I can't find a solution that will permanently fix this. Ideally I don't want to have to roll back one or two version of photoshop.  Currently working on version 22.5.0, with Macbook pro 16inch 2019, Big Sur 11.5.1