Unable to load licensing library

I used chamaxon PP extensions with PP 2021. Now I need to update extensions. But the installed directory PP had space. So pkgutil cannnot read new mocules from directory.

So I will try to uninstall PP and re-install it. 

Uninstall of PP was done. And I rerun the installer. But I cannot load license file in re-install.

PP2021 already out of support. But what is the problem of message 'Unable to load licensing library'?