Janus error 143

Hello, everybody,
I have a problem with my janus. I started a wash program and it is ok but When I start another program that involves taking a phase of methanol and dispensing it, an error comes out: "error 143:MSL move DLL Error
Varispan-8tip pump 1 motor speed of 1000, is out of range 0.833333333 thru 933.333333 ul/sec.”
what do you think it is?

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This error appears to be caused by the pipetting speed exceeding the upper limit. You can check the liquid class or dispensing speed setting

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