phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './bdforum/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 ('1e3b9c383507be88f08bdcb7aa25cc0e', -1, 1472700679, 1472700679, '36c43895', -1, 0, 0)

Line : 187
File : sessions.php