Hi to everyone,

I´m trying to add a domain to some of my docker containers using Nginx Proxy Manager, but i´m getting this error:

Failed authorization procedure. wordpress.word-omv.tk (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching http://wordpress.word-omv.tk/.well-known/acme-challenge/5jAOAFNFa3sB2PTTiBqLihWhu_vG60GvlgleVHLIWG0: Timeout after connect (your server may be slow or overloaded),
,

I have tried with a domain from Freenom and also Duckdns, but it´s the same.

I detailed everything i did here in this google doc (steps, pictures, …) https://docs.google.com/document/d/1QMLRizrO-WvVGIM1Szq3FgnNJ3b6bWMAQ4n7ss7VMXY/edit?usp=sharing

Can someone help please?
Thanks.