If you can't access a workspace, a few things could be wrong:
The workspace owner didn’t invite you to it.
You're signed in to a different account.
If you need access right away
Contact the owner and ask them to invite you to the workspace.
Try a different account
If you have more than one account, see if you have access to the workspace with a different account.
To switch to another account:
Log back in with your other account.