I saw some errors and wanted to know what they meant and if there was an impact

[hudson-s]

No Permission or Channel exists for 10.0.0.66:47104 on allocation 10.0.0.66:58632 (suppressed 175 log events)
file_client.go:214: config-file-client WARNING: Waiting for config file "etc/stunnerd/stunnerd.conf"

[rg0now]

These are two errors:

This is the uglier one and indicates either a NAT/firewall conntrack mapping timeout or a weird violation of the TURN standards on the client side. If, however, your connections are working fine then you can safely ignore this.

No Permission or Channel exists for 10.0.0.66:47104 on allocation 10.0.0.66:58632 (suppressed 175 log events)

This one shouldn't ever happen: this error shows that STUNner cannot load the configuration from a file but we stopped using the file-based config system about 2 years ago. Please check your install and re-install STUNner properly:

 file_client.go:214: config-file-client WARNING: Waiting for config file "etc/stunnerd/stunnerd.conf"