You've added an MSFC2 router feature card to a WS-X6K-SUP1A-2GE supervisor engine and it does not recognize it.
This is due to the version of CAT OS you have installed on the SUP1A supervisor engine. You will need to upgrade the CAT OS to a current version (currently 8.7) before the SUP1 engine will recognize the MSFC2. Once you upgrade, you can issue a "show mod" command to ensure that the MSFC2 is available. You can also issue a "switch console" command to switch the console to the MSFC2.