CLIENT:
PROJECT ELEMENTS:
Warning: Undefined variable $cat_name in /srv/users/polivkaintl/apps/polivkaintl/public/wp-content/themes/polivka/template-parts/content-single.php on line 70

Fatal error: Uncaught TypeError: join(): Argument #1 ($array) must be of type array, string given in /srv/users/polivkaintl/apps/polivkaintl/public/wp-content/themes/polivka/template-parts/content-single.php:70 Stack trace: #0 /srv/users/polivkaintl/apps/polivkaintl/public/wp-content/themes/polivka/template-parts/content-single.php(70): join('') #1 /srv/users/polivkaintl/apps/polivkaintl/public/wp-includes/template.php(812): require('/srv/users/poli...') #2 /srv/users/polivkaintl/apps/polivkaintl/public/wp-includes/template.php(745): load_template('/srv/users/poli...', false, Array) #3 /srv/users/polivkaintl/apps/polivkaintl/public/wp-includes/general-template.php(206): locate_template(Array, true, false, Array) #4 /srv/users/polivkaintl/apps/polivkaintl/public/wp-content/themes/polivka/single.php(18): get_template_part('template-parts/...', 'single') #5 /srv/users/polivkaintl/apps/polivkaintl/public/wp-includes/template-loader.php(106): include('/srv/users/poli...') #6 /srv/users/polivkaintl/apps/polivkaintl/public/wp-blog-header.php(19): require_once('/srv/users/poli...') #7 /srv/users/polivkaintl/apps/polivkaintl/public/index.php(17): require('/srv/users/poli...') #8 {main} thrown in /srv/users/polivkaintl/apps/polivkaintl/public/wp-content/themes/polivka/template-parts/content-single.php on line 70