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 ('4d108c2cec5255d6e7c9e2f55b332f14', -1, 1561473431, 1561473431, '36e39da3', 0, 0, 0)

Line : 187
File : sessions.php