We're experiencing an AWS-wide DNS problem. Every 01 minute of each hour the DNS does not respond, which can cause failing attempts to connect between components in Keboola Connection. This will cause the running orchestration to fail.
It is reported all across AWS:
https://forums.aws.amazon.com/thread.jspa?threadID=161837&tstart=0
If your orchestration fails with an application error around 01 minute of an hour (it can propagate to the job a bit later, eg. at XX:02), you're most likely affected by this issue. Just re-running the orchestration will solve the problem.
Please bear with us while we're trying to solve this issue with AWS Support. Here are some examples of failed orchestrations that might help you identify this issue.