Fatal error: Uncaught Error: Call to undefined function WPSCORE() in /home/videoar/public_html/wp-content/themes/retrotube/inc/init.php:12 Stack trace: #0 /home/videoar/public_html/wp-content/themes/retrotube/header.php(3): require() #1 /home/videoar/public_html/wp-includes/template.php(810): require_once('/home/videoar/p...') #2 /home/videoar/public_html/wp-includes/template.php(745): load_template('/home/videoar/p...', true, Array) #3 /home/videoar/public_html/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #4 /home/videoar/public_html/wp-content/themes/retrotube/index.php(1): get_header() #5 /home/videoar/public_html/wp-includes/template-loader.php(106): include('/home/videoar/p...') #6 /home/videoar/public_html/wp-blog-header.php(19): require_once('/home/videoar/p...') #7 /home/videoar/public_html/index.php(17): require('/home/videoar/p...') #8 {main} thrown in /home/videoar/public_html/wp-content/themes/retrotube/inc/init.php on line 12