Dear hast29, Thank you so much, your experience and advices are very important add to the user manual. By following your advice I fixed all the errors/warnings listed in this post. Except this one:
Code
Error 053: NAS100/USD unavailable at this time
Error 053: SPX500/USD unavailable at this time
Error 053: US30/USD unavailable at this time
Error 053: DE30/EUR unavailable at this time
Error 053: UK100/GBP unavailable at this time


I didn't pay much attention to these Errors before. I thought when the related markets/sessions opens, Zorro can automaticly download the latest data of NAS100/SPX500... and start trading them. But now I am not sure about it. Should I re-start the strategy during the markets/sessions open?

Looking forward to you replies again, and wish you have a nice trading day!