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 ('c5d98a5d1069b623364f693097c38ff0', -1, 1566799956, 1566799956, '22ef9e6b', 15, 0, 0)

Line : 189
File : sessions.php