How to handle FATAL Kafka errors ?

[aKumara123]

C++ API used.
When a FATAL error is detected in event_cb callback
OR
When producing, error returned (other than Queue Full)

is it OK to delete Producer/Consumer objects and re-create them (and continue using the new objects) ?
New messages are produced by : reading the last message in each topic-partition, and producing msgs after the last msg.
OR
is it mandatory to terminate the Application ?