Merge Action Error

When running the merge action, the document downloaded has weird characters that replace apostrophes. Also, this error appears before opening it: 'We found unreadable content. Do you want to recover the contents of this document? If you trust the source of this document, click Yes.' This action has worked for 2 years without any changes to the templates in the last couple of months. In the below screenshot, the word should be 'Client's.'