Error with Build your own Digital Assistant activity

Learning & Development Programs Reboot Your Skills 2021
1

When running my ‘Build your own Digital Assistant’ code, I keep receiving one of the following errors for the ‘Replace Text’ action. If I skip the items, everything else seems to work. Can anyone assist?

Something went wrong with an Action .
Activity Replace Text ( Word Replace Text ) failed:

Unable to cast COM object of type ‘Microsoft.Office.Interop.Word.ApplicationClass’ to interface type ‘Microsoft.Office.Interop.Word._Application’. This operation failed because the QueryInterface call on the COM component for the interface with IID ‘{00020970-0000-0000-C000-000000000046}’ failed due to the following error: The RPC server is unavailable. (Exception from HRESULT: 0x800706BA).

OR:

Something went wrong with an Action .
Activity Replace Text ( Word Replace Text ) failed:

The message filter indicated that the application is busy. (Exception from HRESULT: 0x8001010A (RPC_E_SERVERCALL_RETRYLATER))

2

As a note, it looks like the first “Replace Text” action works and the Day is successfully replaced in each word document, just the timeslot and first name replace text actions throw the error. The emails, however, are not being sent.