Warning At Top of Site

[Abronsyth]

Strict Standards: Declaration of File::getBasename() should be compatible with SplFileInfo::getBasename($suffix = NULL) in /home/ratgamex/public_html/classes/class_file.php on line 19

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /home/ratgamex/public_html/classes/class_file.php:19) in /home/ratgamex/public_html/classes/class_session.php on line 13

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/ratgamex/public_html/classes/class_file.php:19) in /home/ratgamex/public_html/classes/class_session.php on line 13

I think I've had this problem before, but I can't remember how to fix it. Anyone know what's up?

[Hwona]

Is it this?:
http://www.mysidiaadoptables.com/forum/showthread.php?t=4205&highlight=header+errors

If it is, I got it fixed by getting the host to turn off... whatever error thing it's called?