Often, the error is isolated to a specific document. If the error is file-specific, create a new file and copy your assets over:
Close all Adobe applications. Go to C:\Windows\System32 and delete the FNTCACHE.DAT file. Restart your PC to allow Windows to rebuild a clean font cache. 5. Change or Optimize Scratch Disks
Check that the file name does not contain special characters (like / , : , * , ? , " , < , > , | ). 6. Toggle GPU Performance If the error occurs during rendering or complex effects: Go to . Uncheck GPU Performance . Restart Illustrator. Preventing Future Unknown Errors
Incorrect or full scratch disks can trigger PARM errors during memory-heavy tasks. Go to .
Does this happen with or just one specific project ?