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 ('13b996b36ff4201b3b1fa38da4a31e6c', -1, 1571063596, 1571063596, '03e3e94e', 28, 0, 0)

Line : 187
File : sessions.php