Check Atomizer and Low Res issue with Aspire Plato

when i install the 0.4Ω it always shows Low Res on the screen but when i install the 1.8Ω it shows Check Atomizer on the screen! i need help please! A friend just gave it to me, he just bought it last sunday as a gift and i use it for a day because it was leaking, i clean it up and then happends this! help please
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