It seems like the dependencies have not been installed correctly in your application. Please try to add onnxruntime JAR in your application or install the API from pom.xml file if you are running a maven project. In case issue still happens, please let us know.
Can you please share the sample console application which is able to reproduce the same issue? Also, please try to use the 21.4 version of the API before sharing the sample application. We will further proceed to assist you accordingly.
We were able to notice the issue in our environment while testing the scenario using the latest version of the API and have logged it as OCRJAVA-129 in our issue tracking system. We will further look into its details and keep you posted with the status of its correction. Please be patient and spare us some time.
We would like to share with you that in the latest release version (21.6), we have added Chinese language support and recognition capabilities as you can see in the examples (added). Unfortunately, we cannot recognize images as in your example. Aspose.OCR specializes in recognizing printed text, and your image has more handwritten stylized text.