'js_search_filter' function wasn't found

Hi,

I tested the ‘Start SEO data optimization’ on Yoast SEO and it failed. The support said it was something at my side.

My Hoster said:

The error reports that ‘js_search_filter’ function wasn’t found. I see it was called by the Theme in this file: wp-content/themes/Newsmag-child/functions.php
There were no other errors or warning in PHP or Apache log during the process.

and gave me this info:

{…}
​component: "Plugin: wordpress-seo-premium"
​file: "wp-includes/class-wp-hook.php"
​key: "72ad45a5e822047537248a8e135cb3a8"
​line: 292
​message: "call_user_func_array() expects parameter 1 to be a valid callback, function 'js_search_filter' not found or invalid function name"
​stack: Array(4) [ "do_action_ref_array('pre_get_posts')", "WP_Query->get_posts()", "Yoast\\W\\S\\I\\A\\Admin_Columns_Cache_Integration->fill_cache()", … ]
​type: "warning"
​<prototype>: Object { … }

What can I do to call the js_search_filter in the functions.php?

Thank you in advance and best regards,
Luke