Most of the users get to experience an internal error that can be very frustrating sometimes. When you encounter HTTP error 500 WordPress, users become confused about what to do and how to resolve it. In such a situation, you need to first turn on the debugging mode. With this, youll get to know about the root cause of the error. Once you get an insight into the error, you can find a solution to the problem. One of the solutions that you can try is deactivating the plugins and themes. Sometimes, plugins can cause problems in the smooth functioning of WordPress. So, all that you need to do is to disable the plugin one by one. This will help you to know which plugin or theme was causing the error. After this, you can also increase the PHP memory on WordPress. You can also get in touch with WordPress experts.