Fallout 4 wants to start with custom parameters !

[Bando]

Hello, I want to start the game and I get this message: Starting game with custom parameters
Fallout 4 is trying to start with the parameters shown below:
-len
If you did not request this launch, or you do not know what these parameters are, click the cancel button.
Steam /Game/ properties/launch options is empty, there is nothing in it.
If I go to continue, I get this message again. Can anyone help? I have played it for 350.7 hours and I have not had such a problem with it so far.

[DouglasGrave]

Do you use F4SE? One of the few places I've seen the -len parameter actually identified seemed to implicate it and suggested it needed redownloading and reinstalling:

https://forums.nexusmods.com/topic/13506105-crash-on-start-executing-with-len-error/

According to it, the -len parameter limits the character length of the command line.

[Bando]

Thanks for the help! Yes, I had to uninstall and reinstall it, now it works fine.