Error message, website gone

Asked this last night to no responses. My website https://www.dctvuniverse.com is just showing “error” out of nowhere on my computer and iPad. I am able to view it from my phone but whenever I go to wp-admin or wp-login I just get the same error message on every platform. Someone please respond because I would be devastated if my website was inaccessible.

This link is a screenshot of the error message I’ve uploaded: https://dctvuniverse.imgur.com/all/