Kobo Start Menu Stopped Loading

Hi,
I turned my kobo h20 on the other day showed a message about a new update, and I couldn't do anything other than accept. Then the screen had a weird animation rotating with an arrow repeatedly..

Since that Nickel is working correctly, but KSM doesn't start on launch or work if i click the image in the library....

I am a bit worried about installing KSM from scratch in case it caused further issues.

Anyone had the same thing or can anyone advise what I need to do to reinstall?

Cheers