phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1114 The table 'phpbb_sessions' is full

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c25b5c40946be7e94cb6d321e097e1a0', -1, 1529363043, 1529363043, '36a2e325', -2, 0, 0)

Line : 187
File : sessions.php