Keep your system and apps up-to-date. Older versions of Mac OS and outdated apps are prone to be attacked by malicious activities. Check login items to troubleshoot error code 500. In some cases, many issues can be resolved by simply rebooting your Mac, and you can move along. Delete temporary, junk and cache files. Both system and applications create temporary files, preferences, and caches under your current user account. Disable/Remove problematic applications. If error code 500 happens only when you use specific programs, quite possibly it is the specific program that brings about the error.
If the error code 500 is caused by corrupted/missing system files, performing a reinstall of Mac OS can be a quick fix for the problems resulting from a damaged operating system. To reinstall Mac OS X, do the followings: Make sure to connect your Mac with the Internet, and then restart your Mac.
, several mac OS Mojave users are reporting that they are getting the “ com., and apple., and commerce. Client error 500 ” error every time they try to sign in or download an application from App Store. In some cases, this error might appear while purchasing an application in the App Store.
When you visit a website and get the 500 Internal Server Error message, it means that the problem lies with the site that you’re trying to access, not your computer. However, there’s a slight chance that that something on your end has caused it. What’s the reason behind 500 Internal Server Error?
How to fix “App Store not working” error?
Click on System Roots in the left panel Now you will able to sign in or download applications from App store without any issue. Sometimes your Apple ID information can be the issue causing the problem for logging in to account or downloading applications from App Store. This error can also appear when purchasing an application from the App Store.