Hi Lavanya,
I am not completely sure what you situation is like, but maybe setting the microflow call type to asynchronous will help? https://docs.mendix.com/refguide/on-click-event/#3323-microflow-call-type
If the setting is set to synchronous, Mendix will only wait for a certain amount of time for a reply and then raise a technical error to the client (only to the client, it will not show in the server log afaik). If set to asynchronous, it will wait for a longer time.
I hope this helps.