I Updated To WordPress 4.7 and my site disappears

I want to first of all thank you guys because you are doing a great work for free and I personally am grateful. God will grant you guys the grace and the knowledge to keep on changing the world for the better.

Now Yesterday I updated to wordpress 4.7 and my site (www.nigerianhive.com) started showing error 500, I couldn’t logon to the wordpress admin section, but my site was still running perfectly, visitors were still getting access to the site, but I couldn’t get access to the admin section, so I got in contact with my hosting company, (hostgator) and they tried helping me this morning but they couldn’t help, now my site is empty, nothing is visible now. please what can I do.

Thank you very much guys and God bless you.