phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpBB/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 ('325f7cc6337880ca07ae303f734c1680', -1, 1462424354, 1462424354, '365356e0', 5, 0, 0)

Line : 187
File : sessions.php