When you have a problem with your website, it’s often caused by the active theme or one or more of the plugins.
Sometimes it’s because 2 plugins don’t play nicely together, especially when you have more than one plugin doing the same job. A typical example of this is having Google XML Site Maps plus All In One SEO or Yoast SEO all trying to generate a site map. They trip over each other’s feet.
So my usual advice has been to switch to the latest standard theme issued by WordPress and deactivate all the plugins. Then activate them one at a time, testing as you go to find the source of the problem.
While that’s still sound advice, it’s not always practical when your website is live and you may have visitors on it. So wouldn’t it be nice to be able to deactivate all of those plugins for troubleshooting purposes without affecting your site visitors?
There are some plugins you don’t want to be without, even for an instant as they need to be active all the time for them to work. I don’t want to turn off my pretty links when someone could be trying to access one of my affiliate programs.
This video shows how you can deactivate all your plugins without affecting your live website.