Error setting up HANA Decision Tables on HCP trial account schema

Hi,

I am trying to set up HANA decision table on the HCP trial instance schema. I am able to create, save, activate and validate the decision table.
But, when I try to call the procedure, created under _SYS_BIC as a result of the decision table, I get an error.

Since, I am using a trial HCP account, I cannot access my procedure under _SYS_BIC and see what's wrong there. Could anyone suggest a workaround for this. Or, is there an alternative to impose business rules on the data in the HCP trial instance schema.

I executed the query: CALL "HCP"."HCP_GRANT_SELECT_ON_ACTIVATED_OBJECTS" as well.

I would appreciate your thoughts.

Thanks and Regards