PPM Resource Search Filter ERROR: Line types of an internal table and a work area not compatible. (termination: RABAX_STATE)

Hi Experts,

I am in Template Management --> Open a Template --> Resources --> Resource Oveview

Insert a name in Filter field, then apply filter (see image)

I get the error:

500 SAP Internal Server Error ERROR: Line types of an internal table and a work area not compatible. (termination: RABAX_STATE)

What do I have to do?

Thank you

Laura