Error: could not generate the compilation unit [SysML V2 Community Edition]

Hello!

I'm using the Cameo SysML V2 Community Edition and encountered a problem with the textual notation. At some point the whole textual model is blank, and when closing and reopening it it shows the error /* Error: could not generate the compilation unit */.

The graphical views are still available and I can edit/add/delete elements, which is reflected in the containment tree.

Any idea where the problem might be coming from? 

Thanks a lot! 

Nidhal