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 ('4ca979affd58dea53d4f9b1eba29b97d', -1, 1571536181, 1571536181, '22ccad2d', 17, 0, 0)

Line : 218
File : sessions.php