Crash while opening apps

I have an issue with modeler 6.10.3

When I've created an app and I try to open it, it shows automatically that it doesn't work anymore.

When it happens, I have two optoins:

1. Trace the errors
2. Shut the application down

When I choose for the first option, the error will show again. If you press "Trace erros" again, Modeler will crash

Does anyone know how I can fix this problem?