Remove the registered license from your account, and when you start the cBot, the registration window will show the cTrader ID retrieved from your IC Markets account. You can register with this.
The cBot will work as long as the cTrader ID you are using taken from your IC Markets account matches the registered cTrader ID at ClickAlgo.
https://clickalgo.com/manage
If you are trying to register on behalf of someone else, it will not work.
If you use your account, share a screenshot of the registration page showing your cTrader ID.