Error while importing a new lesson

Hi. I’ve been trying to import a new lesson all day long and it just won’t work. Here’s the message that shows up:

“An error has occurred while processing your request. Depending on the type of error, it may be automatically logged and reviewed by our team so please retry your request in a few minutes. If you are still getting this error message after a few minutes, please email us at”

Does anyone know what’s going on?

Hi Paulo,
We have just replied on your email, so please lets continue conversation there. Thanks!

Great! Thanks.