Yes, I get the same error.
Plus in the Event page I get some show page error similar.
After upgrade some page with IE have errors. I get a a warning in the bottom left side of the IE window.
If I click there I can find the oerror description.
I sent all my errors to support@boonex.com and Bonnex is slowly replay to my problems.
I suppose they are busy to solve all the problems they have about migration procedure :-|
Davide