OCR 组件无法使用

21-07-21 18:07:35,228] [Main] [截图] [SNTag:2021072118002393621] 返回值：[<class ‘str’>]C:/Users/huangjiaxuan/Documents/RPA/Project/OTN/temp/WRKd5PuG.png
[2021-07-21 18:07:35,228] [C:/Users/huangjiaxuan/Documents/RPA/Project/OTN/codes/Main.py] - [Main] [获取 OCR 文本] [SNTag:2021072118045023124] []
[2021-07-21 18:07:35,228] [lib/ubpa/iocr.pyd] - Ready to execute [general_recognize]
[2021-07-21 18:07:36,836] [lib/ubpa/iocr.pyd] - general_recognize error:{‘error_msg’: ‘System error’, ‘error_code’: -1}

报错信息如上 OCR 的 API key 都是填好了的