Connecting Frappe's Maria DB

I am trying to create a datasource in Looker Studio which will connect to the MySql DB of ERPNext in Frappe cloud. It keeps throwing an error with just a number and no details on what the error is. I am able to connect to the same DB using the same connection parameters using "SqlPro for MySql". It is not working only in Looker Studio. What could be the reason? How do I fix this error?

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