Fatal error: Uncaught Error: Undefined constant "‘upload_max_size’" in /home/vahidg/domains/vahidghorbani.ir/public_html/wp-config.php:18 Stack trace: #0 /home/vahidg/domains/vahidghorbani.ir/public_html/wp-load.php(37): require_once() #1 /home/vahidg/domains/vahidghorbani.ir/public_html/wp-blog-header.php(12): require_once('...') #2 /home/vahidg/domains/vahidghorbani.ir/public_html/index.php(17): require('...') #3 {main} thrown in /home/vahidg/domains/vahidghorbani.ir/public_html/wp-config.php on line 18