Jun 12, 2019 06:46 PM|mgebhard|LINK
You changed the connection string name from ConnectionString to MyConnectionString. You must have also changed the Rate data type in SQL from a float to a string. This is reflected in the response image shown.
I'm getting 500 error with your changed code!
Once I change the Db type to a VARCHAR the code starts working again. Clearly, you are making changes without letting us know. I have no idea what error or issue goes with the current code base.