idahorafting

nothing that I can tell, same set of plugins, same theme
don’t know, unless there was some bot that was hitting the one and not the other ?

I could not login, I had someone else try, they got the same results.

I have fixed it by deleting the files from the wp-plugin directory and reset the .htaccess

I am in, but don’t know if I should reinstall the plugin.
I use it on a different site (same settings) with no problems.

yes
https://www.website.org/?newurl
it jumps to the home page https://www.website.org