Searching for a often leads to malicious sites or fake software that can compromise your computer. There is no legitimate "script" that can instantly unban an account, as bans are managed on the game's servers, not your local device.
Understanding why you can't play is the first step toward fixing it: krunker unban script link
This happens when an individual account is flagged for cheating or breaking terms. These are typically permanent and tied to your username. Searching for a often leads to malicious sites
If you believe your account was banned in error, you have 6 months to appeal. Use the Official Ban Appeal Form and provide your username, linked emails, and a description of the situation. and a description of the situation.