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Fatal error: Uncaught Error: Call to undefined function locate_block_template() in /home/mierzejewski/ftp/pawelm/wp-includes/template.php:66 Stack trace: #0 /home/mierzejewski/ftp/pawelm/wp-includes/template.php(567): get_query_template('single', Array) #1 /home/mierzejewski/ftp/pawelm/wp-includes/template-loader.php(81): get_single_template() #2 /home/mierzejewski/ftp/pawelm/wp-blog-header.php(19): require_once('/home/mierzejew...') #3 /home/mierzejewski/ftp/pawelm/index.php(24): require('/home/mierzejew...') #4 {main} thrown in /home/mierzejewski/ftp/pawelm/wp-includes/template.php on line 66