database error

here is the alert message or the boxed message:

Sorry. A non-recoverable error has occurred.

Database Error Code: Table 'srb.mos_users' doesn't exist, 1146

Return to CiviCRM menu.

And this is the error:

error

Array
(
[callback] => Array
(
[0] => CRM_Core_Error
[1] => handle
)

[code] => -18
[message] => DB Error: no such table
[mode] => 16
[debug_info] => SELECT id, email FROM mos_users where email != '' [nativecode=1146 ** Table 'srb.mos_users' doesn't exist]
[type] => db_error
[user_info] => SELECT id, email FROM mos_users where email != '' [nativecode=1146 ** Table 'srb.mos_users' doesn't exist]
[to_string] => [db_error: message="DB Error: no such table" code=-18 mode=callback callback=CRM_Core_Error::handle prefix="" info="SELECT id, email FROM mos_users where email != '' [nativecode=1146 ** Table 'srb.mos_users' doesn't exist]"]
)

srb is the database name, i do not have the mos_users table cause i have joomla it should be jos_*, is there a way to tweak this and where