Website down. To many redirects

Hi all,

My website was down for 15 hours and I have no idea why? This was the last message I got.

TOO MANY REDIRECTS. LAST REDIRECT HTTPS://WORLDWHITEWIZARDS.COM/ => HTTPS://WORLDWHITEWIZARDS.COM/MAINTENANCE/

I just enabled maintenance mode so I could work on my theme with upfront plugin. The maintenance page has 4 links to my subdomeins and some text.

Any idea what went wrong here?

Regards,

Joris