As binary.com re-brands themselves to deriv.com they made some changes on the 16th July 2020 that will make your bots stop working.
All you will need to do is update your bots and they will work again.
To this end just download the bots from the links below and they will automatically overwrite your old version of the bot with the new version.
==>> Volatility Bot
==>> Pivot Bot
If you already had a binary.com account, then you can continue using that account, otherwise you will need to open a new account with deriv.com
With the new deriv.com accounts they only allow you to create an API Token if you have a real account.
They do not allow API creation with a demo account.
So you will need to just click on the small avatar in your real deriv account.
Then go to API Token, then create a name for your Token and then hit create.
This will create a Token that you can then copy and insert into your bot where it asks for Token API.
If using the Volatility Bot it should look like this with it being Version 184.108.40.206 or higher.
We have been having some consistent success on the 1 minute chart with a Factor setting of 3.5 and expiry of 1 minute.