3DEXPERIENCE Students Apps access

Hello,

Last Sunday i bought the 3DEXPERIENCE Engineer for Students package. Until yesterday it was working fine and I had access to the plateform and the Apps included in the offer. However, when I connected today, a part of the Apps disapeared, and I can't access for example the Catia software anymore. What should I do to fixe this?

Edu ​​​​​​​3DEXPERIENCE ENGINEER ​​​​​​​Student Offers