There is a one scenario,when you give invalid account number in front end,it should return error message saying "Invlaid account".
It is working for the first time as expected and not working when you send the request second time after 2Sec of first request,returing as Unexpected server error in front end.
I can not see any logs in Message monitoring but there are logs in server level and showing as system error.
Scenation is working when you send the request within 5 sec and it is not working if you send the request in 2 sec intervals.
Can you please help me to fix it..