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 ('9a891e4cca4477ebfea438e4fd563226', -1, 1566799535, 1566799535, '22ef9e6b', -4, 0, 0)

Line : 189
File : sessions.php