Invoice email template to customer corrupted

[atmosman]

 I was looking to make a text change in my storefront_order_confirm template and when I selected "Visual" mode I made a small text change and saved the changes. After that the text in the HTML Body section became corrupted and the problems began. I found a clean copy from my test site and copies and pasted it into the HTML Body section but I keep getting these warnings  "Can't send emails. Please see log for details and check your mail settings." where I check AbanteCart log I see
"2021-04-10 18:10:32 - Error: DATA not accepted from server!" I am running version 1.2.16

Customers receive the emails when I update their orders but not the original invoice.

I've tried everything I know to do, can anybody please help.

[timlight10]

What happens if you delete the content of the template entirely and leave it very basic, does the e-mail send then?

[Basara]

Hello.

The Visual editor is deprecated in the new AbanteCart version, do not use it for complex emails. To restore the original email code check the demo https://www.abantecart.com/shopping-cart-demo