In the CustomEMA parameter in the strategy filters settings of the MoonBot terminal, I specified the EMA formula[5m,1], but the strategy does not work, and in the filters on the coin chart it says “CustomEMA: Wrong EMA formula (EMA[5m,1]>-1)”, what could be the matter?

: General errors

If there is an error in writing the CustomEMA formula in the MoonBot terminal on the Filters / Base tab of the strategy settings, for example, square brackets were used instead of round brackets, as in your case, then the entry in the filters on the chart will be displayed as follows:
EMA Filters: CustomEMA: Wrong EMA formula (EMA[5m,1]>-1)
To correct the error, replace the square brackets in the formula with round ones.