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 ('e09330566ccd30e4f9c69c1af03c76db', -1, 1511304139, 1511304139, '36c6d243', 10, 0, 0)

Line : 211
File : sessions.php