I am trying to get single row in object format but dont know why always getting null in front end. Where backend functing giving me correct output.
This is the output i am getting in console in backend appscript

This is main function that giving me output

This is the function in front end i am getting null here

Instead of using getValues, use getDisplayValues(), this is will return date as string, which is the cause of getting null in client side as date is prohibited.
Reference:-