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 ('840ef6c652d1b0e1a0e4afcfe6f7d896', -1, 1435986034, 1435986034, '36a7d85d', 0, 0, 0)

Line : 187
File : sessions.php