The error message showed up after they upgraded to Ubuntu 20 and Perl 5.30. When I informed them of the error they said they installed the Ajax module but I still got the same message. Unfortunately, I don't know exactly what they did. They are offering me an option to upgrade to Ubuntu 18.04 until 2023 and they will keep Perl 5.22 installed in an alternate location but Perl 5.30 will be the default.