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 ('a421599672bee1c6449ffb3cc4b94973', -1, 1566425506, 1566425506, '23adeaed', 55, 0, 0)

Line : 187
File : sessions.php