Alaska5562 That would be the issue. The path to Documents should be this:
C:\Users\username\Documents
With your actual username, of course, the one that appears in the last line of your Command Prompt screenshot. Here's how to change it:
When Documents is in an invalid location, Sims 4 can't write to it, or anywhere inside, and the usual consequence is the "already running" error, although sometimes we see a different error instead.
For the OneDrive errors, it looks like it was trying to sync the game's program files at one point. But your previous screenshots showed that the game was installed into the correct location, so I'm not sure why the error was happening. Is it possible you had previously installed the game elsewhere, and then you uninstalled it and reinstalled to the right location?
At any rate, if you want to make sure you don't have another Sims 4 install hiding somewhere on your computer, open Command Prompt and enter this command:
cd "C:\"
Then enter this command:
dir /s "Delta*"
And post a screenshot of the results. The idea is that any Sims 4 install will have exactly one Delta folder (the * is in case it was renamed at some point), and if you have extra, this search will find them and list their locations, so you know where to look. By the way, the first command says "the next command applies to the C drive," so you could change it to cd "D:\" to search your D drive if you have one, and so on. But OneDrive only deals with files on C by default, so that's where to look first.
Forgot to sent this
