HB legacy doesn't load all components

Hi,
I have installed newer version of ladybugtools, but now i need to open a legacy version script. When i install the legacy version i see not all the components are loaded.

I get the openstudio not accessible error also but i am confused because it was working with the later version of ladybugtools. I had to look fo the older version of openstudio but couldnt manage to find it for download.

Any idea about how to get it to work?