You can contact Shopify via the links below: https://help.shopify.com/en/questions#/login
In the time wait, you can clarify your problem, and please share your site URL and take a screenshot of the error, so I will check and provide a solution here.
Tira here to help. Thanks for your question and thanks @LitExtension for providing these links.
That is right, if you would like to reach out to support to look into your account specifically, we would be happy to continue assisting you through live chat, email or callback. Please visit https://bit.ly/3cJkx8V and log in to your account to create a support request.
I would love to expand on @LitExtension’s desire to help you here. What notifications are you looking to edit? We also have a help doc with ways you can customize your notification templates, for example, adding a logo, choosing your colors, or changing language for your templates, here: Edit notification templates. Is this what you were looking to do? Let myself and the community know so that we can point you in the right direction.