It looks like the upgrade to 18.04 worked to fix the issue but I also had to run wo stack purge --php72
and wo stack install --php72
because some of the dependencies were specific to ubuntu 16.04. php73 and php74 were upgraded like normal
To upgrade I had to add several things to my sources.list file and I had to run apt-get purge debhelper
, which maybe was something specific to my server.