phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './forumradionet/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7852944dd6c92b7d9f74e2e18e6763b9', -1, 1409681426, 1409681426, '17146764', -4, 0, 0)

Line : 187
File : sessions.php