I tried to trade with your bot [Dispenser.tf Logistic].

But i keep getting the message:
There was an error sending your trade offer. Please try again later.

You have logged in from a new device. In order to protect the items in your inventory, you will be unable to trade from this device for 7 days.

And the crazy thing is, it only happens when i try to trade with the bot.
I can trade with other people/bots just fine.

Is this some kind of error on your end or is the error coming from steam guard system?

If you use the same device to trade with the bots and other people, there is basically no difference. The 7 day limit has nothing to do with an account, but the device/browser.