Title: Uninstalled – multiple errors in server log files
Last modified: September 2, 2020

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# Uninstalled – multiple errors in server log files

 *  Resolved [saltmediadevon](https://wordpress.org/support/users/saltmediadevon/)
 * (@saltmediadevon)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/uninstalled-multiple-errors-in-server-log-files/)
 * Hi, we used to use SuerPWA but we had some issues with the last two updates so
   we’ve now discontinued using it on all our wordpress installs.
 * We are getting 100’s of the below errors on our server logs every hour.
 * We removed the plugin over 1 month ago.
 * `xx.xxx.xx.xx 404 GET /superpwa-sw.js HTTP/1.0`

Viewing 1 replies (of 1 total)

 *  [Jose Varghese](https://wordpress.org/support/users/josevarghese/)
 * (@josevarghese)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/uninstalled-multiple-errors-in-server-log-files/#post-13378291)
 * Hello [@saltmediadevon](https://wordpress.org/support/users/saltmediadevon/)
 * Sorry to hear about it. Can you please let me know the issue which you have faced
   so that I can look more into it.
 * The 404 error you have noticed is because some users whos browsers already registered
   the service worker is checking for whether an update of the SW is available or
   not. As you have already removed the plugin this logs as 404 and the service 
   worker will be automatically removed from those users. If you want to unregister
   the service worker without causing any 404 logs, add the below script to your
   website. It will unregister the service worker when user visits the website.
 *     ```
       <script>
       if ('serviceWorker' in navigator) {
   
           navigator.serviceWorker.getRegistrations().then(function(registrations) {
   
           for(let registration of registrations) {
   
                   registration.unregister()
   
           }}).catch(function(err) {
   
               console.log('Service Worker registration failed: ', err);
   
           });
       }
       </script>
       ```
   

Viewing 1 replies (of 1 total)

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## Tags

 * [errors](https://wordpress.org/support/topic-tag/errors/)

 * 1 reply
 * 2 participants
 * Last reply from: [Jose Varghese](https://wordpress.org/support/users/josevarghese/)
 * Last activity: [5 years, 9 months ago](https://wordpress.org/support/topic/uninstalled-multiple-errors-in-server-log-files/#post-13378291)
 * Status: resolved