Flow execution fail for Discover and Store Data (REST)

[Rohit patel]

Description: In CSD 2.0 we have configured endpoint configuration manager , JDBC rest and spoke.
Now we are verifying the execution of first discover and store data (REST) .
But getting the below casting error.

Please check the flow execution link.

https://hcltechdemo1.service-now.com/$flow-designer.do?sysparm_nostack=true#/operations/context/2ca3...