get rid of rror 913 - Could not find row in sysdatabases with database id 0

Hello,

This is an old one , but is there anyway to get rid of this annoying message when dbcc's came clean(check table, checkdb):

1:00000:00034:2015/07/14 18:06:43.21 server  Error: 913, Severity: 22, State: 2

01:00000:00034:2015/07/14 18:06:43.21 server  Could not find row in sysdatabases with database id 0. Run DBCC CHECKTABLE on sysdatabases.

00:00000:00105:2015/07/14 18:06:47.93 server  DBCC TRACEON 3604, SPID 105

There are no other errors in errorlog and it's and old ASE 12.0.x

Thank you

Regards

Jose