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 ('3feabba2667c0e797685c7341d41623c', -1, 1519566979, 1519566979, '36e2fd22', -4, 0, 0)

Line : 211
File : sessions.php