Gmod game crash after moving games to a new hard drive

I have no idea why my source games crash
(gmod runs source tf2 does half life ect)
i need help because i want to play gmod with my friend

Did install Garry’s Mod from Steam onto this new hard drive, or did you just copy-paste all the Steam files and games to your new drive?

If there is a mindump, upload the minidump to http://dumps.metastruct.uk.to/