If someone is trying to join your Discord server and they are unable to accept an invite, it is important to take action immediately. The first step is to take a screenshot of the conversation in the #report-spam channel, as this will provide evidence for any further action that needs to be taken. Once you have the screenshot, the next step is to contact a Discord moderator or administrator to ban the user from the server. This is important as it will prevent the user from continuing to spread spam or other malicious content. Additionally, it is important to report the user to Discord itself, as this will help keep the platform safe for all users. Finally, it is important to inform other members of the server about the incident, so that they can be aware of any potential threats.