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 ('47069c8456d6baf8f4ea23d91aa8e2d1', -1, 1498367147, 1498367147, '36c6dfaa', 14, 0, 0)

Line : 187
File : sessions.php