Syntax error: Invalid syntax on Debian

[sk1badev]

Hello, please help me, I really ask. I did everything as in the instructions, I added all the necessary information for the telegram in the config. After the launch main.py the message appears:
"file"/root/TradingView-Webhook-Bot/TradingView-Webhook-Bot/main.py ", line 7

^
SyntaxError: invalid syntax"

I tried to install it on CentOS, it didn't work either, when I go to point 8, the following text appears:https://imgur.com/2vByluZ

[sk1badev]

Well, now this error has stopped appearing on CentOS, but now there is another problem with the script, I was looking for a solution to the problem on the Internet, I did not find it. I keep getting OSError: [Errno 98]

(TradingView-Webhook-Bot) [root@ovz1 TradingView-Webhook-Bot]# python main.py
Traceback (most recent call last):
File "main.py", line 46, in
serve(app, host="0.0.0.0", port=80)
File "/root/TradingView-Webhook-Bot/TradingView-Webhook-Bot/lib64/python3.6/site-packages/waitress/init.py", line 13, in serve
server = _server(app, **kw)
File "/root/TradingView-Webhook-Bot/TradingView-Webhook-Bot/lib64/python3.6/site-packages/waitress/server.py", line 85, in create_server
sockinfo=sockinfo,
File "/root/TradingView-Webhook-Bot/TradingView-Webhook-Bot/lib64/python3.6/site-packages/waitress/server.py", line 244, in init
self.bind_server_socket()
File "/root/TradingView-Webhook-Bot/TradingView-Webhook-Bot/lib64/python3.6/site-packages/waitress/server.py", line 361, in bind_server_socket
self.bind(sockaddr)
File "/root/TradingView-Webhook-Bot/TradingView-Webhook-Bot/lib64/python3.6/site-packages/waitress/wasyncore.py", line 396, in bind
return self.socket.bind(addr)
OSError: [Errno 98] Address already in use

[fabston]

Hello,

the port you’re trying to use (80) is already in use. Please try another one like 8443.