Learn Spanish Central
espanol es su langua - this is wrong
español es su lengua - this is right
Such a simple mistake under the title: Learn Spanish Central
Oh, well ...
The only place that I know that it was written that way was in this discussion.
This discussion was not created by the forum creator nor the administrators. It was created by one of the members. The administrators do not and can not edit discussions except for to delete them. Also if you read the discussion, you will find out that another member corrected the spelling error.
I hope that answered your concern.