Hi @Quinn, Katie ,
Welcome to Microsoft Q&A forum and sorry for your experience.
We usually notice the internal server error when there is an issue with the ADF dependent service Databricks.
As per my conversation with internal team, there was an outage reported by Databricks service on 4/13 probably that could be the reason you are seeing these errors. But the issue is resolved now.
In case if you still continue to receive these errors please do share the latest pipeline and activity runID's for the failed ones so that we can escalate to product team to have a deeper analysis.
You can also check the status of databricks from the status page here: https://status.azuredatabricks.net/
This page also contains info about the planned maintenance.
Hope this info helps. Please do share the pipeline and activity runID's if you ever notice these errors.
Thank you
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