Call to a member function get_the_lifespan() on null
#0 /home/848860.cloudwaysapps.com/vjentarave/public_html/wp-content/themes/questroyal-child-theme/functions.php(105): qr_post->get_the_artist_lifespan()
#1 /home/848860.cloudwaysapps.com/vjentarave/public_html/wp-content/themes/questroyal-child-theme/single.php(13): qr_Helper->__call()
#2 /home/848860.cloudwaysapps.com/vjentarave/public_html/wp-includes/template-loader.php(106): include('/home/848860.cl...')
#3 /home/848860.cloudwaysapps.com/vjentarave/public_html/wp-blog-header.php(19): require_once('/home/848860.cl...')
#4 /home/848860.cloudwaysapps.com/vjentarave/public_html/index.php(17): require('/home/848860.cl...')
#5 {main}