BIP3201
Severity
20 : Error
Message
(<insert_1>, <insert_2>) : EXTERNAL SCHEMA clause specified for the routine <insert_3> that is not defined to be LANGUAGE DATABASE.
Explanation
The EXTERNAL SCHEMA clause is only valid for routines that have an implicit or explit LANGUAGE DATABASE clause. The routine specified was <insert_3>.
Response
Correct the syntax of your ESQL expression in node <insert_1>, around line and column <insert_2>, then redeploy the message flow.