Unexpected errors are not being treated

[JoseRenan]

When an unexpected error is thrown, it is not being treated and it's not returned on the HTTP response, making the request look like it hasn't finished yet.
It's needed to use a generic treatment for this kind of server errors returning the following response and logging the error stack, what will make the system more debuggable and won't let the client wait the time limit to get an answer from server.

default response:

{
       "status": 500,
       "message": "Unexpected server error ocurred"
}