Hello @fuadhaque, the error being occurred due to Laravel and Django sharing the same port which is 8000.
There is a easy fix to this problem, go to your Laravel root directory in terminal/command promt and then run use the "port" flag in the artisan command like this
php artisan serve --port 8080
Now you would have a message like this:
Laravel development server started on http://127.0.0.1:8080/
Now go to http://127.0.0.1:8080/ to open Laravel app and http://127.0.0.1:8000/ to open Django app!
Note: I have edited your question format
Hope it helps :)