py310-markdown - Failed to fetch signature for archive

[Michael Newman]

After: sudo port -u upgrade outdated

Error: Failed to archivefetch py310-markdown: Failed to fetch signature for archive: The requested URL returned error: 503

Then:

sudo port install py310-markdown
--->  Computing dependencies for py310-markdown
--->  Fetching archive for py310-markdown
--->  Attempting to fetch py310-markdown-3.3.7_0.darwin_21.noarch.tbz2 from https://packages.macports.org/py310-markdown
--->  Attempting to fetch py310-markdown-3.3.7_0.darwin_21.noarch.tbz2.rmd160 from https://packages.macports.org/py310-markdown
Error: Failed to archivefetch py310-markdown: Failed to fetch signature for archive: The requested URL returned error: 503
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_python_py-markdown/py310-markdown/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there
is a bug.
Error: Processing of port py310-markdown failed

No idea what to do about this, but the error is preventing other outdated ports from upgrading.