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 ('7b7dbb3663f0f1e878fc846e6ff009f0', -1, 1571534367, 1571534367, '22ccad2d', 15, 0, 0)

Line : 218
File : sessions.php