phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './soocool2_db/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 ('c4f0cc216b8c7a701ff9b3729120d05a', -1, 1438467187, 1438467187, '3657f3a1', 4, 0, 0)

Line : 187
File : sessions.php