Step 1: Reinstall the Regular WordPress Files
One of the major reasons behind Error Establishing a Database Connection in
WordPress is the corrupted WordPress core file.
It might be possible that someone has tried to hack your
website. Maybe you have edited some files mistakenly, or might be it is because
of plugins issue.
If it does, then you should reinstall the default
WordPress file. You can do that by downloading a new version of WordPress and
upload it to your site.
Step 2: Test out Credentials of Your Database Connection
There is a need for a username and password to make a
connection to the database. Generally, users who use these credentials usually
don’t change them. However, you can find some awkward events after doing any
edits to your website file, the hosting servers, and others. Sometimes
mistakenly or deliberately change credential makes “error establishing a
database connection” occurs.
You can rectify this issue “wp-config.php” file.
Step 3: Ensure your Database hasn’t Been Damaged
Despite being an excellent forum for websites and blogs,
WordPress has a complicated database. Several fine mechanisms need to be in
sequence to stay away from the issue. But often, something goes out of portion,
and here you get Error establishing a database connection.
The most prominent thing is to navigate to your WordPress
dashboard – abc.com/wp-admin
If you receive the similar error “error establishing a
database connection,” leave this step.
And if you see other issues, then you need to concentrate
on what WordPress recommending you should attempt. The latest version,
WordPress has given many problems solving processes, so it would be helpful to
do as per WordPress instructions. Not only sometimes, but users also face WordPress White Screen of Death error
where they see a blank white screen. Solve issues as per guidelines given by
WordPress help desk.
Ensure themes and Plugins Haven’t Been Damaged
It might be possible that maybe one of the site’s themes
and plugins have been damaged. Go to WordPress admin of the website. Search for
plugins and deactivate one by one. Similarly, then you should also check your
theme and disable and reinstall the default theme. Activate plugin one by one,
and then you will find that the corrupt one. It will help you in fixing the
database connection error.
Interact with Web host provider continuously.
When you find that website was functioning for a couple
of moments before and now it is not working, then it can be Error from hosting
provider.
Contact your host
provider and ensure there is something wrong from his side. They will solve
Error accordingly.
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