# Plesk

### 503 on Websites
When a site throws 50X errors, most times its the backend application that is causing issues.

#### PHP Realted:

##### Plesk incomplete domain removal

This happens when a domain was removed improperly on plesk. Syntomps are

- 503 Error On websites
- Stopped php-fpm service
- Unable to restart php-fpm
- Following error in journalctl: 

```ERROR: [pool example.com] the prefix '/var/www/vhosts/system/example.com' does not exist or is not a directory```

To solve this issue, we can take the following steps:

Confirm if the website still exists on plesk
1. Check the vhosts: `ls -al /var/www/vhosts/system/example.com`
2. See if httpd has the website in its cache: `httpd -D DUMP_VHOSTS | grep example.com`
3. See if the site still exists on pleskdb: `plesk db "select * from domains where name like '%example%'"`
::: warning
_Note: All these commands should return a negative or incomplete value else do needful removal from whatever throws a positive output_
:::

Remove the ghost file from php-fpm:
1. Change the X.X to the php version and set the right conf file in the path to remove the config: `rm /opt/plesk/php/X.X/etc/php-fpm.d/example.com.conf`
2. Restart php-fpm from Plesk GUI under System Services or via cli using systemctl.

Done. This issue should be solved now. [Refrence](https://www.plesk.com/kb/support/various-actions-fail-in-plesk-the-prefix-var-www-vhosts-system-example-com-does-not-exist-or-is-not-a-directory-fpm-initialization-failed/)