Hi,

as you can read in our official statement of supported browsers and devices, we do not support IE.

https://mdbootstrap.com/general/browsers-and-devices/

We are doing our best to ensure compatibility with older browsers, however, due to technical limitations, it's not always possible. IE11 is almost 6 years old and doesn't support many crucial features like flexbox. I think this article describes deeply this problem: https://css-tricks.com/a-business-case-for-dropping-internet-explorer/.

If we decided to fully support old browsers, we would neglect the development and improvement of our products

Best Regards, Marta