phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './tripleac_Forum/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 ('27d2017155d62543ed34f3b6def1e008', -1, 1455217322, 1455217322, '36a753e0', 20, 0, 0)

Line : 187
File : sessions.php