BIP2470
Severity
20 : Error
Message
(<insert_1>, <insert_2>) : Illegal type for operand <insert_4> of the operator <insert_3>. Valid types are <insert_5>.
Explanation
The expression supplying the parameter must evaluate to a value of a suitable type. The given expression cannot possibly do so.
Response
Correct the syntax of your ESQL expression in node <insert_1>, around line and column <insert_2>, then redeploy the message flow.