Oracle Backup Fail with status code 5455

[Aboualam]

Backup fails with error code 5455 and the bpdbsbora log on the Oracle client shows:

05:04.791 [270813.270813] <16> CFECallback::reportStatus: ERR - Unable to connect to avopdp1. Error Code = 603: ORA-00603: ORACLE server session terminated by fatal error ORA-27515: inadequate memlock limit or driver settings Process ID: 270960 Session ID: 49 Serial number: 56922

18:05:04.796 [270813.270813] <16> check_database_state: NBBrowseEngine call failed. Status: 114

18:05:04.796 [270813.270813] <16> main bpdbsbora: Error while checking the database state

Anyone came across something like that ?

[Aboualam]

Even though there are 2 databases on the server one finishes successfully and the other fails 

Thanks in advance

[Nicolai]

Looks to be a Oracle error

The solution seems to be here but  put behind login: https://support.oracle.com/knowledge/Oracle%20Database%20Products/2605233_1.html

[Aboualam]

I asked the for the Oracle DBA help and we reinstalled the nebackup client and it suddenly worked again thank you @Nicolai for your help :D