And the problem was ... ?
my $wsdl = XML::Compile::WSDL11->new("https://myservice.com/service.ph
I'm pretty sure XML::Compile will not download the wsdl from a URL. You'll have to do that yourself, and then pass the file name to new().
my $call = $wsdl->compileClient('doQueryAllSysStatus');
I'm also pretty sure you do not need to call importDefinitions. At least not with the method you want to compile. importDefinitions is, e.g., for supplying additional xsd files that define the service. Which you will have to download if there are any.