[Wien] problem with w2web"Error - Failed to open file"

[sufyan]

Dear users,
I have a problem with the instalition of w2web and i need your help

sufyan2020 at sufyan:~/WIEN2k/SRC_w2web/bin$ ./w2web
w2web failed to bind port 7890 - port already in use!
You may want to try w2web -p portnumber
sufyan2020 at sufyan:~/WIEN2k/SRC_w2web/bin$ ./w2web -p 8890
w2web failed to bind port 8890 - port already in use!
You may want to try w2web -p portnumber
sufyan2020 at sufyan:~/WIEN2k/SRC_w2web/bin$ ./w2web -p 8880
w2web server started, now point your web browser to
http://sufyan:8880
sufyan2020 at sufyan:~/WIEN2k/SRC_w2web/bin$ ,
after that when i point  my web browser to  http://sufyan:8880
 .....
  i have this
Error - Failed to open file
thanks
sufyan naji
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