When working with the Creatio plug-in for MS Word, you may encounter the error "Unexpected character encountered while parsing value: <. Path", line 0, position 0." when selecting a template for further customization.
This issue arises due to login problems to your Creatio environment.
Possibly, the problem lies in the fact that the password for the user you are connecting with has expired. To confirm, simply log in as this user in the Creatio application using direct credentials.
If the password has indeed expired, you will see the following message:
and after simply changing the password, the functionality of the Creatio plug-in for MS Word will be available to you again.