Massive website eror when switching to ES production environnement

Hi,

I'm having multiple issues when switching from Development system environnement to Production system environnement in ES backend.

- I get 404 error on all links (for example http://unicyclist.info/discussions)

- Registration module popup for login doesn't open

- Even some buttons in the backends doesn't work. Theme > compiler > Build dropdown not working under Development mode.

I have added my website info.

Now, even when I switch back to Developement mode, I still get 404 error on all links and such... Anything I'm doing wrong?

Thanks

B.