Is your hard drive fast enough? If it isn't of sufficient good quality and speed you may continuously get corrupted messages - https://bluebellflora.com/2023/11/26/choosing-an-external-hard-drive-for-your-game/
Why do you have a folder called “The Sims 4.app”? What is the purpose of the folder and the contents?
Does the Electronic Arts folder contain the Sims 4 folder? Have you created a symlink in Documents to the Electronic Arts folder on the external?
I also read the info in the link you sent me, and my SSD meets the requirements.
Would it be best to erase everything and try again?
Bluebellflora
