Also I used other custom indicators, I had same problem

Thanks for your reply.

I downloaded the file from https://www.mql5.com/es/code/1321

I have a custom indicator ('deltazigzag'), but in the backtest is error:

2025.10.17 13:34:29.092 Core 01 deltazigzag is not custom indicator and will be removed
2025.10.17 13:34:29.092 Core 01 2025.01.02 01:15:00 cannot load custom indicator 'delta zigzag' [4802]
2025.10.17 13:34:29.092 Core 01 2025.01.02 01:15:00 indicator create error in 'deltazigzag.mq5' (1,1)

The indicator is in the C:\Users\MSI\AppData\Roaming\MetaQuotes\Terminal\FE0E65DDB0B7B40DE125080872C34D61\MQL5\Indicators

Please, could you help me,
Thanks

deltazigzag.mq5