What this error means ? and how to resolve it?

[Tradehull_Imran]

Hi @NiKHiL_S_R

See solution link : Learn Algo Trading with Python | Codes | Youtube Series - #1330 by Tradehull_Imran

Also this one : Learn Algo Trading with Python | Codes | Youtube Series - #1557 by thakurmhn

you can apply both solutions