I get an error when trying to upgrade from Jira Service Management to Service Collection. The form has two steps. On the first step, I select the site I want to convert and click "Next", but then I see this message:
“We’re not sure what went wrong. Try again later. If this keeps happening, contact support.”

I can’t contact support because I’m on a free plan. Do you have any idea why this error might be happening?
Thanks.