- The popup in your workspace is likely unrelated to the transformer error.
- There are a number of potential causes for the transformer error, from the backend EIS not responding quickly enough, to a deadlock, to invalid authentication, to an update operation that didn't affect the required number of rows, to any of a huge number of other issues. To know for sure, you'll need to look at the server logs. Is there a reason you can't see them from SCC?