my production server went down over the weekend and when I checked log file it had bunch of errors like following:

ORA-00603 ORACLE server session terminated by fatal error
ORA-29516 Aurora assertion failure: Assertion failure at joncomp.c:127 jtc_active_clint_init_ncomp_slots(oracle/aurora/memoryManager/ThunkEnumeration, 0) returned 0

Anybody has idea why I got this error?

Thank you.