Unexpected token when run amp4e_ldap_tool amp -c

[gadaxmagicgadax]

I get this error but I don't understand what's the problem:
(JSON::ParserError)eworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/json/common.rb:156:in `parse': 767: unexpected token at '

<title>400 The plain HTTP request was sent to HTTPS port</title>

400 Bad Request

The plain HTTP request was sent to HTTPS port