Call for Help! / error:4753 & error:0 / Unable to Closing All Open Positions - Thank you!

 

Hello Everyone!,

I'm at the end of my rope and need help please. I have searched MQL5 forums and google, didn't understand MQL5 manual documentation

Getting Errors and not able to move forward - please help (journal & mq5 files attached) 

            // Alert: The Sell order request could not be completed -error:4753

            // Alert: The Sell order request could not be completed -error:0

Why is something as simple as Closing All Open Positions so mysterious?

Great Thanks!!!

I'm a Rookie


Files:
 
You are using code build for netting account on a hedging account, most probably.