Expanding into the EU is a minefield, especially when your site starts flagging...

https://www.social-bookmarkings.win/scaling-into-europe-is-a-headache-especially-when-you-wake-up-to-a-30-traffic

Expanding into the EU is a minefield, especially when your site starts flagging hundreds of hreflang errors overnight. It’s a classic bottleneck that kills your rankings before you even launch