Error "Processing Failed - Internal server error;contact your system administrator"

Hi,

I am using

Version of SAP B1 : 8.81 PL 10

Version iPad application SAP B1 : 1.50

I followed every step in guide to configure both SAP and iPad but I get the same error after I have logged in successfully and the menu on left loads.

"Processing Failed - Internal server error;contact your system administrator"

I followed a Troubleshooting Guide but the problem is not resolved yet.

I have tried this with two different databases with same result.

Please Help.

Thank You.