PROBLEM with one GREEK server | slackpkg upgrade-all

My usually mirror server I use for updates today was stuck in the middle of upgrade-all command. I tried 2-3 times but problem was there...
I change to this server in slackpkg/mirrors
Code:http://ftp.otenet.gr/linux/slackware/slackware64-current/Then Code:slackpkg update gpg
slackpkg update
slackpkg upgrade-allThen I realize that a tone of upgrades was downloading...
I stopt output of terminal to take a look and everything was outdated
For example Code:Package: kernel-source-4.9.41-noarch-1.txz
Downloading http://ftp.otenet.gr/linux/slackware/slackware64-current/./slackware64/k/kernel-source-4.9.41-noarch-1.txz...
--2023-09-11 14:15:20-- http://ftp.otenet.gr/linux/slackware/slackware64-current/slackware64/k/kernel-source-4.9.41-noarch-1.txz
Resolving ftp.otenet.gr (ftp.otenet.gr)... 2a02:587:dff:501::89, 212.205.74.89
Connecting to ftp.otenet.gr (ftp.otenet.gr)|2a02:587:dff:501::89|:80... connected.
HTTP request sent, awaiting response... 200 OKI stopped command, returned to the first server , which thankfully this time worked fine and everything is ok now.

Question is how this could happened with Code:http://ftp.otenet.gr/linux/slackware/slackware64-current/ ???