Exception opgetreden:

Attempt to read property "ID" on false
/data/sites/web/locnl/www/wp-content/themes/loc/inc/users.php:250

#0 /data/sites/web/locnl/www/wp-content/themes/loc/inc/users.php(250): {closure:/data/sites/web/locnl/www/wp-content/mu-plugins/dhv-error-catcher-development.php:36}(2, '...', '...', 250)
#1 /data/sites/web/locnl/www/wp-includes/class-wp-hook.php(326): loc_remove_author_pages_link('...')
#2 /data/sites/web/locnl/www/wp-includes/plugin.php(205): WP_Hook->apply_filters('...', Array)
#3 /data/sites/web/locnl/www/wp-includes/author-template.php(393): apply_filters('...', '...', 15, '')
#4 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/helpers/user-helper.php(56): get_author_posts_url(15)
#5 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/generators/schema/author.php(59): Yoast\WP\SEO\Helpers\User_Helper->get_the_author_posts_url(15)
#6 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/generators/schema-generator.php(125): Yoast\WP\SEO\Generators\Schema\Author->generate()
#7 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/generators/schema-generator.php(72): Yoast\WP\SEO\Generators\Schema_Generator->generate_graph(Array, Object(Yoast\WP\SEO\Context\Meta_Tags_Context))
#8 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/presentations/indexable-presentation.php(720): Yoast\WP\SEO\Generators\Schema_Generator->generate(Object(Yoast\WP\SEO\Context\Meta_Tags_Context))
#9 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/presentations/abstract-presentation.php(66): Yoast\WP\SEO\Presentations\Indexable_Presentation->generate_schema()
#10 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/presenters/schema-presenter.php(61): Yoast\WP\SEO\Presentations\Abstract_Presentation->__get('...')
#11 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/presenters/schema-presenter.php(45): Yoast\WP\SEO\Presenters\Schema_Presenter->get()
#12 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(419): Yoast\WP\SEO\Presenters\Schema_Presenter->present()
#13 /data/sites/web/locnl/www/wp-includes/class-wp-hook.php(324): Yoast\WP\SEO\Integrations\Front_End_Integration->present_head('')
#14 /data/sites/web/locnl/www/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array)
#15 /data/sites/web/locnl/www/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#16 /data/sites/web/locnl/www/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(390): do_action('...')
#17 /data/sites/web/locnl/www/wp-includes/class-wp-hook.php(324): Yoast\WP\SEO\Integrations\Front_End_Integration->call_wpseo_head('')
#18 /data/sites/web/locnl/www/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#19 /data/sites/web/locnl/www/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#20 /data/sites/web/locnl/www/wp-includes/general-template.php(3192): do_action('...')
#21 /data/sites/web/locnl/www/wp-content/themes/loc/header.php(23): wp_head()
#22 /data/sites/web/locnl/www/wp-includes/template.php(810): require_once('...')
#23 /data/sites/web/locnl/www/wp-includes/template.php(745): load_template('...', true, Array)
#24 /data/sites/web/locnl/www/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#25 /data/sites/web/locnl/www/wp-content/themes/loc/single.php(5): get_header()
#26 /data/sites/web/locnl/www/wp-includes/template-loader.php(106): include('...')
#27 /data/sites/web/locnl/www/wp-blog-header.php(19): require_once('...')
#28 /data/sites/web/locnl/www/index.php(17): require('...')
#29 {main}