sbot | Slack bot that tells you about the price of AWS Spot | Cloud Functions library

An error occurs using this code it says bot is not defined. I don't understand cogs that much but I understand a bit of classes too. I wanted to know how functions work in a cog and how variables are assigned like guildstats = ... below.

This is my code: (I am trying to make a database using the discord bot in a guild. The code works without using cogs but I wanted it to be easier to debug any errors so I went for cogs.)

I created a simple profiles page that stores data into a JSON file in an Electron Angular project. However, I encounter an error when I click the save profile button. (Using Angular 7)

Here is my profile.component.html file (Save Profile Button is at the very bottom of the code):

I'm working with stocks data and I'm trying to get the imediate previous trading day to know what was the closing price and other info. My code so far only get the previous day, so it doesn't work properly on monday because it searches for info on sunday (not an active day for stocks).

For replication:

I'm trying to make a function to send a message to a specific user for this in my model I wrote this code