I checked the mentioned link and found QTDEBUGPLUGINS=1 which gives me:
Got keys from plugin meta data ("xcb")
loaded library "/usr/bin/pulpo/platforms/libqxcb.so"
QLibraryPrivate::loadPlugin failed on "/usr/bin/pulpo/platforms/libqxcb.so" : "Cannot load library /
usr/bin/pulpo/platforms/libqxcb.so: (libX11-xcb.so.1: Kann die Shared-Object-Datei nicht öffnen: Datei oder Verzeichnis nicht gefunden)"
Obviously libX11-xcb was not found but trying to do apt-get install libX11-xcb gave me "Package can not be found"
I found that I need to install libX11-xcb1 which worked but now I get "could not connect to display"
As far as I understand because my web development machine is just a webserver it will not work there. So I decided to switch to my windows client to run pulpo from there but much to my surprise this is also not working.
Extracting the zip files gives me some files, running the pulpo.exe gives me once again an error about missing plugin "windows". I cannot see a subfolder "platforms" (which is suggested) and also no file qwindows.dll (which would be the "windows" plugin).
Can you please provide the necessary files or a valid download location?