Had some one end up at a home one today.  Might need to check for building blocked. :(

I have a fix by checking for building blocked: Moderator edit: please do not post/link random versions.

Please do not post or link random plugin versions, thanks.

sorry wulf was trying to give the author a fix.

I enabled the Patch system for this plugin, you can try that, otherwise you can post the changed portion here in code blocks.