what are the following error 
root@cubieboard2-sare-drowsiness:~# ./face_mesh 
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
Models loaded; anchors=896
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
^C
root@cubieboard2-sare-drowsiness:~# ./face_mesh 
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
Models loaded; anchors=896
ERROR: gather index out of bounds
ERROR: Node number 91 (GATHER) failed to invoke.
ERROR: gather index out of bounds
ERROR: Node number 91 (GATHER) failed to invoke.
ERROR: gather index out of bounds
ERROR: Node number 91 (GATHER) failed to invoke.
^C
root@cubieboard2-sare-drowsiness:~# ./face_mesh 
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
Models loaded; anchors=896
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
ERROR: /usr/src/debug/libtensorflow-lite/2.16.2/tensorflow/lite/kernels/gather.cc:158 indices_has_only_positive_elements was not true.
ERROR: gather index out of bounds
ERROR: Node number 89 (GATHER) failed to invoke.
^C
root@cubieboard2-sare-drowsiness:~# export TFLITE_DISABLE_XNNPACK=1
root@cubieboard2-sare-drowsiness:~# ./face_mesh 
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
Models loaded; anchors=896
Segmentation fault
root@cubieboard2-sare-drowsiness:~# ./face_mesh 
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
Models loaded; anchors=896