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 ('2ae3ef5e4f24808ce228b2f0ee51da89', -1, 1566626143, 1566626143, '23ad30e0', 60, 0, 0)

Line : 187
File : sessions.php