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 ('0eeb1e6564b1f78b3c3e37d51e76b299', -1, 1472007080, 1472007080, '36e1168b', 48, 0, 0)

Line : 187
File : sessions.php