Getting 500 internal server errors where your website should be is enough to panic anyone. When your website crashes, you lose potential traffic and sales. If it goes offline for a while, it can also negatively impact your Search Engine Optimization (SEO) efforts.
While WordPress is really easy to use, there are some common WordPress errors that can make you panic. The good thing is that the WordPress error you are seeing on your site is most likely been reported and resolved by someone before you.