Even the trial version of PHNL after i deactivated it and reinstalled it, the buildings didn't show up.
Maybe the antivirus has blocked the current version of the Addon Manager so, you are still using the old one that came with KLAX, which doesn't support PHNL.
During installation, you need to TURN THE ANTIVIRUS OFF. Not just quit from its interface: you need to stop realtime protection. Yes, this is important.
- After the installation, BEFORE launching FS9, you need to instruct your antivirus to exclude this file from scanning:
Or, the whole MODULES folder.
- After having configured the antivirus this way, you can finally turn it on, and launch FS9