Database server type not supported

Dear Experts,

I am using version: SAP Business One 9.1 (9.10.150) PL: 05  (32-bit) and SQL Server 2012...Struggling to connect company. I am facing issue while trying to connect company through SDK source,  error message : "Database server type not supported".

Failed To Connect, Check The License Configuration....Pls help me to sort out this.

Thanks & Regards,

Silambu