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 ('57b2f50ff1cff8e043d368d37de22048', -1, 1438770347, 1438770347, '6b15af2b', -4, 0, 0)

Line : 187
File : sessions.php