Server Error

Hi, I´ve been facing this problem when importing content into lingq.
" 500 - Server Error".
At first I thought that could be some kind of instability, but it has been for almost two weeks.
Once in a while I can import normally, but for the most of time this error keeps appearing.

Hi Jose,
Can you please shoot us an email too? Another user complained about the same problem, but we will need some additional information and help from you to figure this out. Thanks!