5) WordPress Issue – Are sure you want to do This

It is named after the error message it displays: are you sure you want to do this. It is usually displayed in the admin area. It occurs owing to the failure of a plugin or theme to correctly use Nonce.

Nonce refers to a security key associated with URLs when in the admin area.

How to fix it: the logic here is to test your plugin and theme in a bid to find out where the issue is coming from

6) WordPress Issue - Error Establishing a Database Connection

Just like the name connotes, it simply tells you that your website is not able to connect with the database. It usually arises when you enter incorrect database details. This may include, database username, host, or password. Otherwise, your database may be corrupt or simply not responding.

How to fix: here again you will need your FTP, or simply lease with site support.

7) WordPress Internal Server Error

Although I have taken it as my last item, it happens to be one of the most common error messages and quite technical. It comes up when there is an issue and the server is unable to fix it. Painful, the error message also does not indicate where it is coming from. As such, there is a need to troubleshoot.

How to Fix: It demands a little bit of troubleshooting, starting with FTP and a review of settings. I advise you to reach out to site support for help.