Why is the vk api bot not sending messages to the conversation?

Question

API

I make a request in the form https://api.vk.com/method/messages.send?chat_id=*&... (I gave the admin to the bot in a conversation)
I put the group token in the access_token = error_code:10,error_msg:"Internal server error "
I'll put in the access_token the token taken from oauth.vk.com = everything works, but sends from my page.
Tried to make requests with peer_id adding 2000000000 all the same Internal server error
Error

{"error":{"error_code":10,"error_msg":"Internal server error","request_params":[{"key":"oauth","value":"1"},{"key":"method","value":"messages.send"},{"key":"chat_id","value":"**"},{"key":"random_id","value":"100"},{"key":"scope","value":"messages"},{"key":"v","value":"5.92"}]}}

Answer 1

To send messages to a conversation on behalf of a bot, you need to use a community token and a parameter peer_id(in this case, it is not necessary to give an admin if you only want to send messages, and not change the name of the conversation, pin messages, exclude users, etc.).
Also, in the address you provided:

https://api.vk.com/method/messages.send?chat_id=*&message=текстv=5.80&access_token=***&random_id=100&scope=messages

you didn't put an ampersand in front of the parameter v.