Asterisk Stopped

Hi, I am really new in Asterisk, and I was installing a TDM400 Card, and everything was okey, but doing I don’t know what, my Asterisk has stopped.
When I want to get into some choices or menu, it told me that I have to look to /var/run/asterisk/asterisk.ctl if that file exist.

It is there, but it appear in purpure color, and with this property
srwxr-xr-x asterisk.ctl

And in the menu, SISTEM MAINT at the web, it shows me that ASTERISK is STOPPED…

Please help me