### Chinese: App 暂时未能联系到骑手
### English: The App cannot contact with the food deliveryman now.
### Errors: There is a major error of incorrect translation has stylistic problems at "food deliveryman". There is a major error of incorrect translation includes information not present in the correct translation at "now". There is a minor error of incorrect translation is missing content from the correct translation at "cannot contact".

### Improved English: App is not able to contact the delivery person for the time being.