The 502 bad gateway error means that one of the servers along the route, possibly the web site server, is having some kind of communication issue and one server has given another server an invalid response. This is not something that is happening on your system it is in the chain of access to the website you are trying to reach.
I was having the same problem yesterday. It seemed to be dependent on what page you tried to log-in from, for example, whether it was the homepage of mahalo answers or from another area of the site. It probably has something to do with all the changes that have been happening at Mahalo lately so I am sure this little hiccup will be fixed soon!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.