SAP Business One 10 Web client error after login

Hello,

After login to web client I received the following error message: No license assigned. Make sure you have a valid license assigned.

My user is superuser and have assigned professional license for SAP Business One. The Service Layer and Web Client are installed on the same Linux server and work fine. We use SAP Busines One 10 FP2108 on Cloud. Could you help me with this issue?

Reagrads,

Plamen