Hi Peter,
I'd like to confirm the following information to troubleshoot the issue:
1. Which Office 365 subscription are you using?
2. Can you specify "I have a journal to get ready (editing etc) and am now stuck without a solution"?
3. Do you mean it stuck when you installed Publisher or when you are using Publisher?
4. Can you check whether you have assigned Office 365 ProPlus license from Office 365 portal?
5. Can you share a screenshot of the error message with us? To upload screenshots, please click Use rich Formatting in this thread and select the Insert/Edit Media icon.
After getting the information requested above, we'll proceed further. Thanks for your time.
Regards,
Alice Wang