Apparently becouse of the horrible decease of cancer and site not getting anywhere anymore ( or thats what i could make of it )
The are realeasing all there coures for free to all , so if there is something oyu can use as an artist-programmer and so on , i would advise to give it a look.

NOTE it seems there is an error or warning advice that you can ignore , i got on to it so nothing seem to be abnormal.

https://www.3dbuzz.com/