Hi Zachi,
Same generic backend error I've now seen reported four times in the past several days, genuine ongoing issue on Atlassian's side, not something wrong with your input.
Try retrying a few times or a different browser/incognito first. If it keeps failing, use the "contact support" link in the error and reference your Trace ID, fastest path given how many people are hitting this right now.
Worth checking status.atlassian.com too in case they post an incident once enough reports come in.
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