Error when copying datasource

I have a data source named X:

https://datastudio.google.com/datasources/ID

If I click the “copy” icon, it takes me to a new tab named Copy of X

There I put my information and click on Authenticate

It loads the SQL and everything looks fine. But then I click on Reconnect and it shows:

System error

Data Studio found a system error

An error ocurred, and it was not possible to fulfil your request

Error code: CODE

Each time I click, the CODE changes, but the last one is 2b3aaecd

Is there something I’m doing wrong?

Hi @PiyinDisruptive , I’ve checked that it may due to an unknown column in the ‘where’ clause. Were you using a custom query to connect? If using a custom query, would you mind double check on the query?