Update ocr_mkcontent.py

magic_pdf/dict2md/ocr_mkcontent.py

@@ -130,7 +130,7 @@ def ocr_mk_markdown_with_para_core_v2(config_path,paras_of_layout,
     url = config.get('server', 'ocr_server')
     # logger.info(f'ocr_server：{url}')
     client = PredictClient(url)
-    status = PredictClient.check_health()
+    status = client.check_health()
     if not status:
         pdf_ocr = None
         logger.warning(f'Health check failed. The server at "{url}" is not responding as expected.')