what does this error mean?

[zjz5250]

train_resnet.py:238: DeprecationWarning: mxnet.model.FeedForward has been deprecated. Please use mxnet.mod.Module instead.
optimizer=optimizer,
2017-10-31 13:42:05,376 Start training with [gpu(0), gpu(1), gpu(2), gpu(3)]
[13:42:05] /media/zhaijunzhi/mxnet/dmlc-core/include/dmlc/logging.h:308: [13:42:05] src/operator/tensor/./matrix_op-inl.h:867: Check failed: (*end <= axis_size) && (*end >= 0) Invalid begin, end, get begin=0, end=64

Stack trace returned 10 entries:
[bt] (0) /usr/local/lib/python2.7/dist-packages/mxnet-0.11.1-py2.7.egg/mxnet/libmxnet.so(_ZN4dmlc15LogMessageFatalD1Ev+0x3c) [0x7fea14bf39ac]
[bt] (1) /usr/local/lib/python2.7/dist-packages/mxnet-0.11.1-py2.7.egg/mxnet/libmxnet.so(ZN5mxnet2op18GetSliceAxisParamsERKNS0_14SliceAxisParamERKN4nnvm6TShapeEPiS8_S8+0x2f1) [0x7fea15d71591]
[bt] (2) /usr/local/lib/python2.7/dist-packages/mxnet-0.11.1-py2.7.egg/mxnet/libmxnet.so(ZN5mxnet2op14SliceAxisShapeERKN4nnvm9NodeAttrsEPSt6vectorINS1_6TShapeESaIS6_EES9+0x1ad) [0x7fea15d7b70d]
[bt] (3) /usr/local/lib/python2.7/dist-packages/mxnet-0.11.1-py2.7.egg/mxnet/libmxnet.so(+0x1b7911e) [0x7fea15f7911e]
[bt] (4) /usr/local/lib/python2.7/dist-packages/mxnet-0.11.1-py2.7.egg/mxnet/libmxnet.so(_ZN5mxnet4exec10InferShapeEON4nnvm5GraphEOSt6vectorINS1_6TShapeESaIS5_EERKSs+0x1670) [0x7fea15f7bc50]
[bt] (5) /usr/local/lib/python2.7/dist-packages/mxnet-0.11.1-py2.7.egg/mxnet/libmxnet.so(MXSymbolInferShape+0x1539) [0x7fea15f07b79]
[bt] (6) /usr/lib/x86_64-linux-gnu/libffi.so.6(ffi_call_unix64+0x4c) [0x7fea30a2fadc]
[bt] (7) /usr/lib/x86_64-linux-gnu/libffi.so.6(ffi_call+0x1fc) [0x7fea30a2f40c]
[bt] (8) /usr/lib/python2.7/lib-dynload/_ctypes.x86_64-linux-gnu.so(_ctypes_callproc+0x48e) [0x7fea30c465fe]
[bt] (9) /usr/lib/python2.7/lib-dynload/_ctypes.x86_64-linux-gnu.so(+0x15f9e) [0x7fea30c47f9e]