I am trying to restore Firebird 2.1 database on Linux but I am receiving error message:

Command '/opt/firebird02/bin/gbak –c –v –p 4096 –user SYSDBA –pass masterkey /backup/BIG_DATABASE /backup/BIG_DATABASE.FDB'
failed with return code 139 and error message -bash: line 56: 11100 Segmentation fault

I am sure that this is not a Firebird error and I am not trying to complain about any error, I am just thinking that I am doing something wrong on my machine but what could be wrong? Upon repeated call the line number and segmentation fault number could be different. Previously I could restore database successfully on this machine but then I installed both Firebird 2.1 and Firebird 3.0 on this machine and now the request to Firebird 2.1 is failing.

Jonatan