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Log errors
If there is an error in the MoonBot terminal on the Filters / Base tab of the strategy settings when writing the CustomEMA formula, for example, the first letter is not English but Russian, then the entry in the filters on the chart will be displayed as follows:
EMA Filters: CustomEMA: Not a EMA (EMA(5m,1)>-1)
This is probably your case. To correct this error, carefully rewrite the entire formula in the CustomEMA parameter strictly in English.