Violation of primary key error after ARS upgrade

I just upgrade ARS from version 7.3 to 7.4.1 in our test environment. After upgrade, the upgrade configuration came up (in place upgrade). Changed database and click next. It is failing with error

Violation of PRIMARY KEY constraint 'PK_ARServices_objectGUID'. Cannot insert duplicate key in object 'dbo_ARServices'. The duplicate key value is ......

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