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The “error establishing a database connection” is probably one of the most common errors WordPress users can encounter. It’s closely tied to the white screen of death (WSOD). This error means your website is no longer communicating or has access to your WordPress database; thus, your entire website goes down.
You should resolve this error immediately, as this can directly affect your sales, traffic, and analytics.
But don’t worry, today we’ll discuss some common scenarios that cause this error and some easy ways to get your site back up and running in no time.