Ok,after some research, this bug happens with a Chrome browser, a newer VB version would squash it but that would require so much shit that it makes my head spin..
PinballNirvana was one of the first sites on the internet to combine Post Nuke with VB, the home page and all content from Post Nuke would need to be imported into the forums like this project that is kinda idle: http://www.pinballnirvana.com/forums/downloads.php
I feel for ya but this site was created before Chrome was a glint in their eyes..
You can interact with the ChatGPT Bot in any Chat Room and there is a dedicated room. The command is /ai followed by a space and then your ? or inquiry.
ie: /ai What is a EM Pinball Machine?