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

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, the wrong designation of hours, minutes, seconds, and in your case 5 minutes instead of 5m is indicated as 5m, then the entry in the filters on the chart will be displayed as follows:
EMA Filters: CustomEMA: Wrong EMA parameter (5m)
To correct the error, carefully rewrite the formula strictly in the English layout and use acceptable abbreviations for time values: hour (h), minute (m), second (s). To write seconds, you can omit the letter s, then the number without the letter will always be counted as s.