a lil help with xbmc scripts

hey i have been trying to access www.xbmcscripts.com for about 5 days and i keep getting the same error DB function failed with error number 145
Table './xbmcscripts/mos_session' is marked as crashed and should be repaired SQL=SELECT session_id FROM mos_session WHERE session_id=MD5('ba12e38fb84118995a2add66dc9a2b73')
SQL =

SELECT session_id FROM mos_session WHERE session_id=MD5('ba12e38fb84118995a2add66dc9a2b73')
and i cant connect thru my xbox ether whats the problem???