Fatal error: Uncaught TypeError: trim(): Argument #1 ($string) must be of type string, WP_Error given in /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-content/plugins/wordpress-seo/src/presenters/canonical-presenter.php:49 Stack trace: #0 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-content/plugins/wordpress-seo/src/presenters/canonical-presenter.php(49): trim(Object(WP_Error)) #1 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-content/plugins/wordpress-seo/src/presenters/abstract-indexable-tag-presenter.php(37): Yoast\WP\SEO\Presenters\Canonical_Presenter->get() #2 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(395): Yoast\WP\SEO\Presenters\Abstract_Indexable_Tag_Presenter->present() #3 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/class-wp-hook.php(324): Yoast\WP\SEO\Integrations\Front_End_Integration->present_head('') #4 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array) #5 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(366): do_action('wpseo_head') #7 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/class-wp-hook.php(324): Yoast\WP\SEO\Integrations\Front_End_Integration->call_wpseo_head('') #8 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #9 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #10 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/general-template.php(3192): do_action('wp_head') #11 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-content/themes/snow/header.php(8): wp_head() #12 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/template.php(810): require_once('/data01/virt823...') #13 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/template.php(745): load_template('/data01/virt823...', true, Array) #14 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #15 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-content/themes/snow/page.php(15): get_header() #16 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-includes/template-loader.php(106): include('/data01/virt823...') #17 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-blog-header.php(19): require_once('/data01/virt823...') #18 /data01/virt82349/domeenid/www.kairevacker.com/htdocs/index.php(17): require('/data01/virt823...') #19 {main} thrown in /data01/virt82349/domeenid/www.kairevacker.com/htdocs/wp-content/plugins/wordpress-seo/src/presenters/canonical-presenter.php on line 49