For a mysterious reason, I cannot access the admin panel of my website (www.madameaimee.fr). I didn't do anything special (bought & installed a new theme - SimpleMag, not a wordpress.org one - on Nov. 2, but it's been working quite well for the last 5 days...), and yesterday, the panel was working just fine, so I really don't understand what might have happened. And the website is working too.
Is it possible that I did something wrong? Any idea on what I should do to be able to access my panel? (I need to work...)