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Market Validation error

Hello everyone! I am having problems with the validation in the mql5 market, I use this EA for days and i have no error, however when validating in the mql5 market there is always an error related to invalid volume, for example 1.53 or 0.17 all in EURUSD where theoretically these valid volumes. an

Messages on graph

Hi ! I have a doubt about my EA and can not find the answer, maybe you can help me . I've seen many EA 's demo version appearing a message in graphic screen, something like " demo version , only 0.01 lot, for the full version contact the developer ," Anyone know how to put this kind of messages