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 ('86659187f3c4afa121a8cea881d61c4d', -1, 1580171289, 1580171289, '23a86fbf', 20, 0, 0)

Line : 187
File : sessions.php