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 ('56a6c860e7aed9a7f3c5b511c5faa6ad', -1, 1537945414, 1537945414, '369e34a6', 166, 0, 0)

Line : 187
File : sessions.php