ErWhat is an Error: Indicator not handled. (handle=-1 | error code=4801)

[fxdreema.acadamy]

Hi, I got an Error during backtesting on mt5. The error show "Error: Indicator not handled. (handle=-1 | error code=4801)". What is that? and how to fix this issue? Thank you.

[roar]

https://www.mql5.com/en/docs/constants/errorswarnings/errorcodes

This page is your best friend. You have wrong symbol selection somewhere

[fxdreema.acadamy]

@roar Thank you a lot. I'm sure that I input a select symbol. How to fix this issue?