OSXFuse & VeraCrypt on Big Sur: OSXFuse seems to be missing on your machine
This seems to be a general problem, see https://sourceforge.net/p/veracrypt/discussion/general/thread/b7cd930cf7/?limit=25#6cb4 and https://sourceforge.net/p/veracrypt/tickets/400/. A new version of VeraCrypt will be required which references the correct path and addresses any other issues related to Big Sur.