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 ('6052a3b8a57c84609f61cd7e5a0f5168', -1, 1566799862, 1566799862, '22ef9e6b', 4, 0, 0)

Line : 189
File : sessions.php