Invalid Certificate Error

When I try to view my Channels DVR remotely, I get certificate errors. It's been like this for about a week. Here are snippets from the logs. I replaced private info with "X"'s.

2020/07/16 13:02:32.842304 [TLS] Certificate generation failed. Trying again while waiting for 5 consecutive responses: acme: Error -> One or more domains had a problem:
[*.XXXXXXXXXXXX.channelsdvr.net] time limit exceeded: last error: Record _acme-challenge.XXXXXXXXXXX.channelsdvr.net. not ready
[XXXXXXXXXXX.channelsdvr.net] time limit exceeded: last error: Record _acme-challenge.XXXXXXXXXXX.channelsdvr.net. not ready
2020/07/16 13:03:13.732936 http: TLS handshake error from 167.206.26.25:39372: remote error: tls: unknown certificate