Solve the Error on html

The http status 500 problem is not a problem within you often times but rather website server that you are going to access.
You don't have to worry about the whole thing.
But just in case below are the steps you need to do to fix this.
Solution 1: If you are experiencing it on one website
You have to wait until the program or the website is up and running again. It might be because they are under maintenance and have reconfigured their server that is why it is not giving any notice.
Solution 2: If you are experiencing it on all website
Contact your service provider to know if they have any problem with the connection because you are experiencing an error to all website. They will provide you more support and info about what is going on.