Don't worry; there are ways to alleviate the issue:
On a Mac, this means Photoshop’s designated scratch disk (usually your startup drive) has run out of space for temporary file operations. But don’t panic—here’s how to fix it.
Resolving the issue requires a tiered approach, moving from immediate software fixes to long-term hardware adjustments.
If the error prevents Photoshop from launching, users can reset the scratch disk preferences upon boot:
