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 ('e84f1fbff9f26db4f8ca22c9644c11d4', -1, 1789709265, 1789709265, 'd849d97f', -4, 0, 0)

Line : 187
File : sessions.php