Thanks for reaching out to Community for your issues with Jira Cloud plug-in for Office. We received additional reports around the same time last week of an issue and there was an implemented changed which was confirmed to resolve the issue with others.
We do want to confirm this resolves your issue as well if you could please let us know if this error is still present when attempting to create an issue from Outlook?
We look forward to hearing back to ensure you’re up and running without issue.
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events