Working with our Drupal 8 site, I have noticed that when I exceed a certain number of fields I get the error message in chrome "The website encountered an unexpected error. Please try again later." or get an HTTP 500 Error in Internet Explorer/Edge.
I get these error messages when navigating the site. Once I go into Admin, it is working fine. Also from the Admin Side, if I select Content, I get the same error message. Once I delete the field from the content type, I can then now navigate the site.