phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './for_adeviq/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 ('809deb5a446b8842a9d1be079744dfd1', -1, 1488203230, 1488203230, '36cda84a', -4, 0, 0)

Line : 187
File : sessions.php