phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './b18432_child/phpbb_sessions' is marked as crashed and last (automatic?) repair failed

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('62aae87aed7338a9fb28404c1e7c7a5a', -1, 1508383077, 1508383077, '365089a8', 0, 0, 0)

Line : 193
File : sessions.php