CHARM- Source type \CLASS=CL_AGS_CRM_1O_API is not compatible

Dear Experts,

i have used the below guide to configure partner determination (Change Manager) using Category .

Change Manager Determination depending on the Category using BRF+ in Change Request Management

i have performed all the the steps correctly but when im try to test the cycle i get the below error upon save :

any ideas how to solve this.

Many Thanks in Advance.

Regards.

Ahmad Salam