Multichannel gas sensor - problems

I run this sensor on the raspberry pi,

and i see some problems.


  1. Problem.

    After some hours , sometimes 1-3 days when I get normal value from sensor

    a get information



    The old V1 firmware is not supported by this library

    Can’t obtain version!

    After power of/on to rasberry I get normal value.



    2.Problem

    after some times a get that same informarmation by 23 hours, that same value



    2019-06-29 08:00:00 0 4.46 0.15 0 0 0 0 0





    2019-06-30 09:15:00 0 4.46 0.15 0 0 0 0 0



    with 5 min time interval , then a power off raspberry pi and than i get normal value .


  2. Problem



    sometimes a get very high value for some gasses, Propane,Butane,Metan ,2070.37,1337.81,3032.14

    when a run calibration than i get normal value.