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 ('9b53cdcc4bf35c439d65702fd4f20e75', -1, 1438356120, 1438356120, '36e2c2b4', -4, 0, 0)

Line : 187
File : sessions.php