Excel [DataSource.Error] Microsoft SQL:

[kkoruni]

Hello Everyone,
I am running into an error when uploading SQL in Excel from database. The message is below.
How do I get around this issue with constraint or index?
I have done a lot of research but I am stuck.
I am not sure what I am missing at this point and I am seeking your help.

Error Message: [DataSource.Error] Microsoft SQL: There is already an object named 'PK_Agent_23456789' in the database. Could not create constraint or index. See previous errors.

Any Help is greatly appreciated.

Thank you,
kkoruni