Learn how to repair ob_end_flush() did not ship buffer of zlib output compression (1)?

the next code seems on the backside of my admin web page:

ob_end_flush(): `did not ship buffer of zlib output compression (1) in /dwelling/benemota/public_html/wp-includes/capabilities.php on line 2619`

That line 2619:

perform wp_ob_end_flush_all() {
    $ranges = ob_get_level();
    for ( $i = 0; $i < $ranges; $i++ ) {
        ob_end_flush();
    }
}

I already disabled all plugins to see if there was an issue with one in all them, but it surely continued anyway.

There’s one other element, after I click on on any plugin, my admin panel stays clean with the error code within the footer