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 ('eff0a4c7eb50ee871d067d8f6e0d513b', -1, 1474799483, 1474799483, 'adf5346e', -1, 0)

Line : 158
File : sessions.php