Warning: Undefined array key "courseID" in /data/web/virtuals/361677/virtual/www/domains/koira.cz/wp-content/plugins/koira/templates/invoice-data.php on line 29
Fatal error: Uncaught Error: Call to a member function getRegistrationID() on null in /data/web/virtuals/361677/virtual/www/domains/koira.cz/wp-content/plugins/koira/templates/invoice-data.php:34
Stack trace:
#0 /data/web/virtuals/361677/virtual/www/domains/koira.cz/wp-includes/template-loader.php(106): include()
#1 /data/web/virtuals/361677/virtual/www/domains/koira.cz/wp-blog-header.php(19): require_once('/data/web/virtu...')
#2 /data/web/virtuals/361677/virtual/www/domains/koira.cz/index.php(17): require('/data/web/virtu...')
#3 {main}
thrown in /data/web/virtuals/361677/virtual/www/domains/koira.cz/wp-content/plugins/koira/templates/invoice-data.php on line 34