Hi @ravdeep.saini31 welcome to forum
Since u are scoring 0/100 every time u submit
Please check the below points
-
Do not reset the test data after running the program , zip and upload the workflow in assignment section
-
Check whether there is spacing in client ID, country etc while creating hash
More details on second point can be found here Assignment 1 of Level 3 Course - Getting Failed Result
Apart from this you can find many questions on assignment on forum please check out that too
Even after all you cannot resolve the issue you can contact @loginerror, @Pablito
They will help you
Hope it helps 
Regards
Nived N 
Happy Automation 
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