@BillAlex sorry about this. This issue will most likely be fixed in the next release after our typeorm upgrades are in place.
In the meanwhile, if you install 0.210.0, you should be able to run n8n db:revert to revert the last migration, after which you should be able to install and run 0.209.4.
Can you please give that a try, and let us know if that does not work?