Bad Gateway when Refresh of 'page'

Hi!

I have a ‘photo credits’ Page as part of my blog and now every single time I try to update it, I get a connection lost message before a Bad Gateway error. Everything is up to date. I thought maybe the Page had too much date but I can’t transfer anything to another page or a new page without the same problem. I have hosting with GoDaddy

I can’t express how frustrating this is. I’m tearing my hair out. Please, please help!