OS: Ubuntu18.04
when run command
#apt-get install -y algorand
…
Failed to fetch https://releases.algorand.com/deb/pool/main/a/algorand/algorand_stable_linux-amd64_2.1.5.deb 404 Not Found [IP: 13.225.7.50 443]
…
Is this a temporary missing of file? because some days ago I installed the algorand on my local ubuntu18.04TLS and it works well until now, but today it fail when being installed on a cloud server in singapore.
thanks for your answer and help.

