"License not Granted" issue

I purchased both "3DEXPERIENCE CATIA for Students" and "3DEXPERIENCE ENGINEER for Students" a few months ago and they were working fine.  Then about a week ago it just stopped working giving me three error messages. The program dose open but none of the commands are there.  Any help would be appreciated. 

Thank you

 

Edu 3DEXPERIENCE CATIA 3DEXPERIENCE ENGINEER