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 ('8be01b44c786a72afc8ab19768145d58', -1, 1547681055, 1547681055, '03502021', 400, 0, 0)

Line : 196
File : sessions.php