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 ('bf42a8e9b4f477b1657cd5b7ae68ddb4', -1, 1498751190, 1498751190, '6b162e96', -1, 0, 0)

Line : 187
File : sessions.php