Question: How plot the systems? and remove the probability singularity?

in most of the my problem i have to check a lot and a lot of parameters to find a good shape of plots and always i have issue with the parameter in most time i can't ploted how i can plot 3D and 2D  of the systems, i want something more clear than this which not make a problem like probably a singularity , there is any way for ploting ?please help

system-plots.mw

 

 

 

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