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 ('ab6b17cc12699e6d8dd9bd1cc9cff2d5', -1, 1529637141, 1529637141, '36a68d0c', 3, 0, 0)

Line : 219
File : sessions.php