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 ('04e47668d9c783dc3a653a27985f1fa5', -1, 1561477303, 1561477303, 'b848d4fe', 0, 0, 0)

Line : 172
File : sessions.php