The page at that URL is itself an error. More specifically, the page doesn’t exist. None of the information on this error page is relevant to your installer issue.
It sounds to me like the files you downloaded on the Linux machine are corrupted. If you redownload them and they fail to install again, I’d suggest finding a different method of downloading the files, because whatever you’re using seems to be corrupting the files on download.
OK, I did download the ones that failed and then they did install OK.
The error I got was a pop up and I assumed that the error was from the OSM windows.exe file. It said "Installer integrity check has failed. Common causes include incomplete download and damaged media. Contact the installer’s author to obtain a new copy. More information at: http://nsis.sf.net/NSIS_Error"
And that link redirected me to the link I posted above.
I have never posted an image here. I captured the pop-up error image in a screen shot but can’t figure out how to include in my post here. I’m used to seeing or getting a menu that let’s me choose the image file I want to include in the post but I not getting that. Nor can I find a tutorial in how to do it for the FluxBB.