Fatal error, function get, header.tpl
Fatal error: Call to a member function get() on null in ./system/storage/modification/catalog/view/theme/default/template/common/header.tpl on line 40
You should try to remember the last modification you have done just that error appeared.
Once you have acceded to your control panel of Opencart,
Whenever you enable / disable or delete a modification you need to click the refresh button to rebuild your modification cache!
On top right, click you have 3 buttons, click the “Refresh”, and then “Clear”.
And try to install the same module again! The error was affecting on europegoodbye.com
Contact us for any assistance need!