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 ('2e0e2db5ae9bb974add86d82ac5dd0e3', -1, 1524345270, 1524345270, '36a7c4d0', 0, 0, 0)

Line : 193
File : sessions.php