phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './forumcapes/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 ('f01d17db2964acf0752dfadeb9e1712b', -1, 1550942465, 1550942465, '22e5c2c6', -11, 0, 0)

Line : 187
File : sessions.php