What does Too Many Redirects Mean?

Too many redirects means that a website keeps being redirected between different webpages addresses in a way that will never be completed (endless loop), displaying a “error too many redirects” message or display that the address you are trying to reach is in a redirect loop.

Why is the Cause of Too Many Redirects?
Too many redirects usually caused as a result of competing redirects, one trying to force HTTPS (SSL) and another redirecting back to HTTP (non-SSL), or between www and non-www forms of the URL.