Problem with PSTricks: luatex85.sty' not found

I am trying to get PSTricks to work. I have installed PSTricks and changed the shell escape in TexStudio. Now I get the following error:
File ´luatex85.sty' not found. else
I could not find anything useful via google.

Here is the latex-code:

documentclass[11pt]{article}

usepackage{auto-pst-pdf}
usepackage{pst-intersect}

begin{document}
    
    psset{unit=2}
    begin{pspicture*}(-0.5,-0.5)(3,3)
    psaxes{->}(0,0)(2.75,2.75)[$x$,-90][$y$,90]
    psset{algebraic,plotpoints=51,linewidth=1.5pt}
    pssavepath[linecolor=red!40]{Pa}{psplot{0.15}{3}{1/x}}%
    pssavepath[linecolor=blue!40]{Pb}{psplot{0.15}{3}{2/x}}%
    pssavepath[linecolor=green!40]{Pc}{psplot{0}{3}{(x-1)*(x+1)}}%
    pssavepath[linecolor=yellow]{Pd}{psplot{0}{3}{(x-2)*(x+2)}}%
    psintersect[name=A]{Pa}{Pc}psintersect[name=B]{Pa}{Pd}
    psintersect[name=C]{Pb}{Pc}psintersect[name=D]{Pb}{Pd}
    pscustom[fillcolor=magenta,fillstyle=solid,linestyle=none]{%
        psplot{psGetIsectCenter{A}{}{1} I-A1.x}%
        {psGetIsectCenter{C}{}{1} I-C1.x}{(x-1)*(x+1)}
        psplot{psGetIsectCenter{C}{}{1} I-C1.x}%
        {psGetIsectCenter{D}{}{1} I-D1.x}{2/x}
        psplot{psGetIsectCenter{D}{}{1} I-D1.x}%
        {psGetIsectCenter{B}{}{1} I-B1.x}{(x-2)*(x+2)}
        psplot{psGetIsectCenter{B}{}{1} I-B1.x}%
        {psGetIsectCenter{A}{}{1} I-A1.x}{1/x}
    }
    end{pspicture*}
    
end{document}

Any help would be appreciated.