Call to undefined method EShopHelper::getFileExt()

Hello
I have updated to the latest version of Eshop and just realised that the products page and the categories page in the back end are showing the following error.An error has occurred.

0 Call to undefined method EShopHelper::getFileExt()

I can still see orders and customers etc but when I try to add or edit a product the above error message shows on the page.

Can I get some help please as I need to amend some products today.

Thanks

Chris

Dear Chris,

Please submit a new ticket to EShop category to send me the super admin account to your site so I can help you to check and resolve the issue for you.

Sincerely, Giang