There is also an option to Send a frown. This button appears in most of cases near to error message. I don't see it in your case. I've sent it sometimes before and I have an e-mail address and some recommendation for you.
Prepare and send an e-mail:
Topic: Send a Frown (Error) - 2/28/2018 10:22:37 PM //paste your date and time of error here
Body: You explanation of situation, version of PBI Desktop (32/64 bit)
Attachments: screenshots step by step how you receive an issue