Duckdns not working

my logs

Time Section
06:00:12 ddns[2306]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:05:10 ddns[3164]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:10:15 ddns[3985]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:15:10 ddns[4811]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:20:14 ddns[5632]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:25:10 ddns[6453]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:30:17 ddns[7300]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:35:12 ddns[8138]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:40:09 ddns[8959]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:45:06 ddns[9780]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) failed:
06:45:06 ddns[9780]: DDNSInternalServerError: Internal server error
06:45:06 ddns[9780]: Internal Server Error
06:50:15 ddns[10601]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
06:55:12 ddns[11421]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
07:00:22 ddns[12249]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
07:05:11 ddns[13109]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) successful
07:10:06 ddns[13930]: Dynamic DNS update for qbcdefghijklmnop (Duck DNS) threw an unhandled exception: Tra ceback (most recent call last): File “/usr/lib/python3.8/site-packages/ddns/__ init__.py”, line 164, in _update entry(force=force) File “/usr/lib/python3 .8/site-packages/ddns/providers.py”, line 158, in call self.update() F ile “/usr/lib/python3.8/site-packages/ddns/providers.py”, line 182, in update self.update_protocol(protocol) File “/usr/lib/python3.8/site-packages/ddns/p roviders.py”, line 366, in update_protocol return self.send_request(data) File “/usr/lib/python3.8/site-packages/ddns/providers.py”, line 370, in send_req uest response = DDNSProvider.send_request(self, self.url, data=data, usernam e=self.username, password=self.password) File “/usr/lib/python3.8/site-package s/ddns/providers.py”, line 319, in send_request return self.core.system.send _request(*args, **kwargs) File “/usr/lib/python3.8/site-packages/ddns/system.p y”, line 167, in send_request resp = urlli