Oracle Solution for Error ora-16264

Solution for Oracle Error ORA-16264

ORA-16264: invalid value for PREPARE_SERVERS parameter

What triggered the Error:

attempt to set PREPARE_SERVERS parameter to zero or to a value which would require MAX_SERVERS to be increased.

What should we do to fix it:

set PREPARE_SERVERS parameter to a non zero value and or increase MAX_SERVERS parameter accordingly.