I get this error in Julia: ArgumentError: hasproperty of NULL PyObject What is it and how to resolve it?

ArgumentError: hasproperty of NULL PyObject

Stacktrace:
[1] pyhasproperty(::PyCall.PyObject, ::String) at C:\Users\Home\.julia\packages\PyCall\BcTLp\src\PyCall.jl:359
[2] hasproperty at C:\Users\Home\.julia\packages\PyCall\BcTLp\src\PyCall.jl:365 [inlined]
[3] ioff(; kws::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at C:\Users\Home\.julia\packages\PyPlot\XHEG0\src\PyPlot.jl:174
[4] ioff() at C:\Users\Home\.julia\packages\PyPlot\XHEG0\src\PyPlot.jl:174
[5] top-level scope at C:\Users\Home\.julia\packages\Plots\vsE7b\src\backends.jl:510
[6] eval at .\boot.jl:331 [inlined]
[7] _initialize_backend(::Plots.PyPlotBackend) at C:\Users\Home\.julia\packages\Plots\vsE7b\src\backends.jl:504
[8] backend at C:\Users\Home\.julia\packages\Plots\vsE7b\src\backends.jl:174 [inlined]
[9] pyplot(; kw::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at C:\Users\Home\.julia\packages\Plots\vsE7b\src\backends.jl:31
[10] pyplot() at C:\Users\Home\.julia\packages\Plots\vsE7b\src\backends.jl:31
[11] top-level scope at In[10]:2
[12] include_string(::Function, ::Module, ::String, ::String) at .\loading.jl:1091