In which case that’s almost certainly the problem.
You can only reissue 5 times in a week, so if you’re set on that DNS name you won’t be able to reinstall until a week has passed.
Renewals are treated specially: they don’t count against your Certificates per Registered Domain limit, but they are subject to a Duplicate Certificate limit of 5 per week
Once you have everything installed just backup your instance. That way if you want to make changes you can just restore a fresh site.