phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './myforum/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 ('993bdf87e12f48f67ffa9474b76c5e32', -1, 1789348751, 1789348751, 'd849d844', -9, 0, 0)

Line : 187
File : sessions.php