Title: First parameter must either be an object or the name of an existing class in
Last modified: March 23, 2022

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# First parameter must either be an object or the name of an existing class in

 *  Resolved [woober](https://wordpress.org/support/users/woober/)
 * (@woober)
 * [4 years, 2 months ago](https://wordpress.org/support/topic/website-is-down-23/)
 * [https://www.wpmarketingrobot.com/](https://www.wpmarketingrobot.com/)
    Error
   520 Ray ID: 6f0983d7dfbfe624 • 2022-03-23 19:18:48 UTC Web server is returning
   an unknown error
 * Is that why im getting this error in the plugin?
    Warning: First parameter must
   either be an object or the name of an existing class in /public_html/wp-content/
   plugins/wp-product-feed-manager/includes/user-interface/wppfm-admin-menu-functions.
   php on line 220
    -  This topic was modified 4 years, 2 months ago by [woober](https://wordpress.org/support/users/woober/).

Viewing 1 replies (of 1 total)

 *  Thread Starter [woober](https://wordpress.org/support/users/woober/)
 * (@woober)
 * [4 years, 2 months ago](https://wordpress.org/support/topic/website-is-down-23/#post-15489179)
 * after around 30 minutes the error disappeared by itself

Viewing 1 replies (of 1 total)

The topic ‘First parameter must either be an object or the name of an existing class
in’ is closed to new replies.

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 * 1 reply
 * 1 participant
 * Last reply from: [woober](https://wordpress.org/support/users/woober/)
 * Last activity: [4 years, 2 months ago](https://wordpress.org/support/topic/website-is-down-23/#post-15489179)
 * Status: resolved