Sorry you have this issue.
It can sometimes happen when VideoScribe has an issue importing a font.
To resolve this issue, please can you save all your locally stored scribe files to the online/cloud directory to back them up.
Then you will need to uninstall VideoScribe and install it again.
Please note that doing this will clear all locally stored VideoScribe projects and data so it is important that you back up the scribes to the online directory.