Flask run getting some error

[Riyaz84]

Hello There,

Thanks for your work, it seems some error when launching the flask run, here is the message i get :

root@IBeam:~/TradingView-Binance-Telegram-Bot# flask run
Traceback (most recent call last):
File "/usr/local/bin/flask", line 8, in
sys.exit(main())
File "/usr/local/lib/python3.9/dist-packages/flask/cli.py", line 1047, in main
cli.main()
File "/usr/local/lib/python3.9/dist-packages/click/core.py", line 1055, in main
rv = self.invoke(ctx)
File "/usr/local/lib/python3.9/dist-packages/click/core.py", line 1657, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/local/lib/python3.9/dist-packages/click/core.py", line 1404, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/local/lib/python3.9/dist-packages/click/core.py", line 760, in invoke
return __callback(*args, **kwargs)
File "/usr/local/lib/python3.9/dist-packages/click/decorators.py", line 84, in new_func
return ctx.invoke(f, obj, *args, **kwargs)
File "/usr/local/lib/python3.9/dist-packages/click/core.py", line 760, in invoke
return __callback(*args, **kwargs)
File "/usr/local/lib/python3.9/dist-packages/flask/cli.py", line 911, in run_command
raise e from None
File "/usr/local/lib/python3.9/dist-packages/flask/cli.py", line 897, in run_command
app = info.load_app()
File "/usr/local/lib/python3.9/dist-packages/flask/cli.py", line 308, in load_app
app = locate_app(import_name, name)
File "/usr/local/lib/python3.9/dist-packages/flask/cli.py", line 218, in locate_app
import(module_name)
File "/root/TradingView-Binance-Telegram-Bot/app.py", line 8, in
bot = MainBot() #Handles all telegram communication
File "/root/TradingView-Binance-Telegram-Bot/bot.py", line 20, in init
self.updater = Updater(config.TELEGRAM_BOT_KEY, use_context=True)
TypeError: init() got an unexpected keyword argument 'use_context'

is there any module need to install ? Thanks