BIP2560
Severity
20 : Error
Message
(<insert_1>, <insert_2>) : A reference variable is required here.
Explanation
The statement or function requires a reference variable. The name given must therefore be the name of a declared reference variable and may not be extended (ie by a dot and another name)
Response
Correct the syntax of your ESQL expression in node <insert_1>, around line and column <insert_2>, then redeploy the message flow.