Fatal error: Uncaught TypeError: array_walk(): Argument #1 ($array) must be of type array, null given in /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-content/plugins/mp-custom-fields/inc/mpcf-modules.php:213 Stack trace: #0 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-content/plugins/mp-custom-fields/inc/mpcf-modules.php(213): array_walk(NULL, Object(Closure)) #1 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-content/plugins/mp-custom-fields/inc/mpcf-modules.php(224): mpcf_get_field('menucolor', false) #2 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-content/themes/ensemblereflektor-2020/header.php(9): mpcf_has_field('menucolor') #3 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-includes/template.php(810): require_once('/customers/9/a/...') #4 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-includes/template.php(745): load_template('/customers/9/a/...', true, Array) #5 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #6 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-content/themes/ensemblereflektor-2020/front-page.php(1): get_header() #7 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-content/themes/ensemblereflektor-2020/index.php(1): include('/customers/9/a/...') #8 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-includes/template-loader.php(106): include('/customers/9/a/...') #9 /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-blog-header.php(19): require_once('/customers/9/a/...') #10 /customers/9/a/6/ensemble-reflektor.de/httpd.www/index.php(17): require('/customers/9/a/...') #11 {main} thrown in /customers/9/a/6/ensemble-reflektor.de/httpd.www/wp-content/plugins/mp-custom-fields/inc/mpcf-modules.php on line 213