Use Comment() and/or Print() or the debugger to show the relevant variables and the debugger:
https://www.metatrader5.com/de/metaeditor/help/development/debug
https://www.mql5.com/en/articles/654
https://www.mql5.com/en/articles/35
https://www.mql5.com/en/articles/2041
https://www.mql5.com/en/articles/150

- www.metatrader5.com
Use Comment() and/or Print() or the debugger to show the relevant variables and the debugger:
https://www.metatrader5.com/de/metaeditor/help/development/debug
https://www.mql5.com/en/articles/654
https://www.mql5.com/en/articles/35
https://www.mql5.com/en/articles/2041
https://www.mql5.com/en/articles/150
I really tried to read this articles and made many tries. I thought that the mistake in deleting object or return.
Is am right?

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Hello
I wander what is the mistake in this indicator because it isn't update the data on chart every candle?