Error Execute

[maxhunter1990]

When I execute get this error :
python3 xsscope.py
Process Process-2:
Traceback (most recent call last):
File "/usr/lib/python3.6/multiprocessing/process.py", line 258, in _bootstrap
self.run()
File "/usr/lib/python3.6/multiprocessing/process.py", line 93, in run
self._target(*self._args, **self._kwargs)
File "xsscope.py", line 1244, in main
root_main = tk.Tk()
File "/usr/lib/python3.6/tkinter/init.py", line 2023, in init
self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
_tkinter.TclError: no display name and no $DISPLAY environment variable
[Mon Apr 10 13:48:06 2023] PHP 8.1.17 Development Server (http://localhost:1337) started

[kleiton0x00]

Make sure to first install php.

sudo apt-get install php

[maxhunter1990]

Make sure to first install php.

sudo apt-get install php

It doesnt work ,I have installed this befor
PHP 8.1.17 (cli) (built: Mar 16 2023 14:37:57) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.17, Copyright (c) Zend Technologies
with Zend OPcache v8.1.17, Copyright (c), by Zend Technologies

[maxhunter1990]

?