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 ('d3f15b4fee4a28d6a3c4c02975cc4019', -1, 1411245775, 1411245775, '365079ba', -4, 0, 0)

Line : 187
File : sessions.php