ValueError: Unsupported data type 14 in tensor

System information

ERROR :

Traceback (most recent call last):
  File "detect.py", line 8, in <module>
    interpreter = tf.lite.Interpreter(model_path="models/saved_model.tflite")
  File "/home/pi/.local/lib/python3.7/site-packages/tensorflow_core/lite/python/interpreter.py", line 209, in __init__
    model_path, self._custom_op_registerers))
ValueError: Unsupported data type 14 in tensor
Unsupported data type 14 in tensor
Unsupported data type 14 in tensor
Unsupported data type 14 in tensor
Unsupported data type 14 in tensor
Unsupported data type 14 in tensor

Note : If you are suggesting me to upgrade or downgrade the packages, please provide necessary code with it.

Thanks !!