Requests timed out.
Cause for Error and Problem;
Some of the requests for asynchronous input or output were not serviced in the required amount of time
How to Solve;ORA-02800 – Requests Timed Out?
Action for Solve and Fix Ora-02800;
If the load on the system is high, it is possible that the timeout limit is too low. Reset it with sfainit(). If the server processes are dying due to unexpected signals, this is an internal error, and ORACLE support should be contacted.