librsvg: checksum mismatch because HTML file

[robsonpeixoto@…]

$ sudo port upgrade outdated 
Password:
--->  p5-xml-parser is replaced by p5.12-xml-parser
--->  Computing dependencies for p5.12-xml-parser
--->  Cleaning p5.12-xml-parser
--->  Computing dependencies for librsvg
--->  Verifying checksum(s) for librsvg
Error: Checksum (sha256) mismatch for librsvg-2.36.1.tar.xz
***
The non-matching file appears to be HTML. See this page for possible reasons
for the checksum mismatch:
<https://trac.macports.org/wiki/MisbehavingServers>
***
Error: org.macports.checksum for port librsvg returned: Unable to verify file checksums
Please see the log file for port librsvg for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_librsvg/librsvg/main.log
Error: Unable to upgrade port: 1
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets

[ryandesign (Ryan Carsten Schmidt)]

Did you read the MisbehavingServers page to which the error message directed you? What is in the HTML file that was downloaded?