phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './why9work_phpbb1/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) VALUES ('f18a35d3cf5a16a0b208ff7376add590', -1, 1462498677, 1462498677, 'adf5362a', 14, 0)

Line : 158
File : sessions.php