Code execution problem on codechef

i code a problem in c it is working fine in my terminal window but when i trying to upload on codechef then i am unable to submit the solution due to error

can you tell me more about the error ?

actually i was trying to upload the code of particular problem but it is throwing a error but same code is running and providing a every solution regarding a individual question
Actually i facing problem to upload code
due to this i am unable to make my rank and all these things

Can you copy paste the error here? It will be clear for us what exactly error you are getting.
Also while uploading the code make sure u selected proper language