weired pdf error

url to pdf ERROR b'Traceback (most recent call last):\n File "/opt/hostedtoolcache/Python/3.10.4/x64/bin/shot-scraper", line 8, in \n sys.exit(cli())\n File "/opt/hostedtoolcache/Python/3.10.4/x64/lib/python3.10/site-packages/click/core.py", line 1130, in call\n return self.main(*args, **kwargs)\n File "/opt/hostedtoolcache/Python/3.10.4/x64/lib/python3.10/site-packages/click/core.py", line 1055, in main\n rv = self.invoke(ctx)\n File "/opt/hostedtoolcache/Python/3.10.4/x64/lib/python3.10/site-packages/click/core.py", line 1657, in invoke\n return _process_result(sub_ctx.command.invoke(sub_ctx))\n File "/opt/hostedtoolcache/Python/3.10.4/x64/lib/python3.10/site-packages/click/core.py", line 1404, in invoke\n return ctx.invoke(self.callback, **ctx.params)\n File "/opt/hostedtoolcache/Python/3.10.4/x64/lib/python3.10/site-packages/click/core.py", line 760, in invoke\n return __callback(*args, **kwargs)\n File "/opt/hostedtoolcache/Python/3.10.4/x64/lib/python3.10/site-packag...

pdfname=url.split('/')[-1]

if not os.path.exists(join(pdfpath,pdfname+'.pdf')):
    cmd='shot-scraper pdf {url} -o {pdfname}.pdf'
    isdone=subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
    out, err = isdone.communicate()