Can't start Studio 4 - any ideas?

[SylviaF]

For some strange reason suddenly I am unable to open studio 4. I get the message "An error has occurred. It has not been possible to restore normal operation. The application must now quit" See screenshot below. I have uninstalled and re-installed, re booted the pc (running on windows 10). Has anyone come across this before, or have any ideas as to what might be causing the problem. It was all working fine yesterday! I shall contact Sil America but thought I would check on here first.

silhouette problem.JPG