Fatal error: Uncaught Error: Call to undefined function post_thumbnail() in /usr/home/rednelo/domains/alpinca.pl/public_html/wp-content/themes/alpinica/template-parts/content.php:28
Stack trace:
#0 /usr/home/rednelo/domains/alpinca.pl/public_html/wp-includes/template.php(706): require()
#1 /usr/home/rednelo/domains/alpinca.pl/public_html/wp-includes/template.php(653): load_template('/usr/home/redne...', false)
#2 /usr/home/rednelo/domains/alpinca.pl/public_html/wp-includes/general-template.php(157): locate_template(Array, true, false)
#3 /usr/home/rednelo/domains/alpinca.pl/public_html/wp-content/themes/alpinica/index.php(39): get_template_part('template-parts/...', '')
#4 /usr/home/rednelo/domains/alpinca.pl/public_html/wp-includes/template-loader.php(77): include('/usr/home/redne...')
#5 /usr/home/rednelo/domains/alpinca.pl/public_html/wp-blog-header.php(19): require_once('/usr/home/redne...')
#6 /usr/home/rednelo/domains/alpinca.pl/public_html/index.php(17): require('/usr/home/redne...')
#7 {main}
thrown in /usr/home/rednelo/domains/alpinca.pl/public_html/wp-content/themes/alpinica/template-parts/content.php on line 28
