Language Model Error Error initializing the training: failed to train the model

[dastevens05]

I successfully trained the sample corpus and audio.
I then deleted those files.
I uploaded my own set of text files and mp3 files successfully.
However, when I try to train either the corpus or audio model (which both say ready), it says:
Language Model Error
Error initializing the training: failed to train the model

Does the system first need to be cleared in some way since I deleted the old sample text and audio files. How do we run this on a new set of data? Thank you.

[dastevens05]

Also, the model name is still showing custom-model-1; from the GUI, can we select a new model name, or will this always train the same model? I suppose from command line can create new custom models, but just wondering if there is a way in the GUI to select a different custom model. Thanks.