Export to mindmanager DTD issue

I tried to export a mind map from study mode in MarginNote into a mmap but when I import it into Mindmanager 2020, it does not work. Tried several exports but none works.

Keeps complaining about layout attributes not in DTD schéma, such as
The attribute subtopalAlignment on ‘http://schemas…Mindmanager/2003
Defaultsubtopicsshape’ is not defined in the DTD/schema

Is there any way to adapt my map in margin notes to facilitate the export?

Weird by the way that it is subtopal and not subtotal, does it make sense?