Hi, I got an email says that my submission has stopped before completion, and the error message was "Error encountered during training." I wanted to know why this error message happened, and i can't figure out this bug from log file. My submission ID is 9604432 Thanks. my log file last few lines ``` STDOUT: 2017-04-29T11:24:42.442589687Z Minibatch loss at step 15400 >> softmax loss : 6.931472 STDOUT: 2017-04-29T11:24:42.442591828Z ('running time per batch : ', 40.715556144714355) STDOUT: 2017-04-29T11:24:42.442593971Z Minibatch accuracy: 50.0% STDOUT: 2017-04-29T11:24:42.442595910Z ('Prediction :', array([ 0.5, 0.5], dtype=float32), 'Label :', array([ 0., 1.], dtype=float32), 'File Name :', '243846.png') STDOUT: 2017-04-29T11:24:42.442600879Z ('Prediction :', array([ 0.5, 0.5], dtype=float32), 'Label :', array([ 1., 0.], dtype=float32), 'File Name :', '135753.png') STDOUT: 2017-04-29T11:24:42.442603126Z ('Prediction :', array([ 0.5, 0.5], dtype=float32), 'Label :', array([ 0., 1.], dtype=float32), 'File Name :', '263327.png') STDOUT: 2017-04-29T11:24:42.442605420Z ('Prediction :', array([ 0.5, 0.5], dtype=float32), 'Label :', array([ 0., 1.], dtype=float32), 'File Name :', '682820.png') STDOUT: 2017-04-29T11:24:42.442607633Z ('Prediction :', array([ 0.5, 0.5], dtype=float32), 'Label :', array([ 0., 1.], dtype=float32), 'File Name :', '741972.png') STDOUT: 2017-04-29T11:24:42.442610000Z ('Prediction :', array([ 0.5, 0.5], dtype=float32), 'Label :', array([ 0., 1.], dtype=float32), 'File Name :', '684044.png') STDOUT: 2017-04-29T11:24:42.442612257Z ('Prediction :', array([ 0.5, 0.5], dtype=float32), 'Label :', array([ 1., 0.], dtype=float32), 'File Name :', '189495.png') STDOUT: 2017-04-29T11:24:42.442614532Z ('Prediction :', array([ 0.5, 0.5], dtype=float32), 'Label :', array([ 1., 0.], dtype=float32), 'File Name :', '389971.png') STDOUT: 2017-04-29T12:41:07.724993906Z ('Predict ```