ORA-54408
The field name "string" in the "input" field in the JSON metadata does not correspond to any input name of the model.
Cause
A field name in the "input" field of the JSON metadata does not correspond to any input name of the Open Neural Network Exchange (ONNX) model.
Action
Ensure that every field name in the JSON object value in the "input" field in the JSON metadata corresponds to an input name of the model.