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 ('b49d93ac983b10d74a32ccd0b18f7fdc', -1, 1503019220, 1503019220, '36a26ff7', 16, 0, 0)

Line : 211
File : sessions.php