O que eu faço para meu photoshop voltar a funcionar?

Good sleuthing @Jeff Arola !

You have created a huge document of around 260,000 x  260,000 pixels.

When you create a new document check that have it set to pixels and not inches/cm.

Hi @Jaqueline D curious if you revert  back to the last version of Ps that didn't give you this message, do you still see it then?

Thank you,

Cory

Go to Preferences/Scratch Disk. How much free space do you have?

The error message is self-explanatory - you are out of HD space for the designated scratch disk so Photoshop will not run properly. Free up HD space on the designated Scratch Disk.