If you are checking this, then it's because the following message has appeared to you :

As you can read in the message, this is happening because :

• There are a lot of people in the same place that you are which are using scrap.tf.
• You are accessing Scrap.TF with the web browser Tor, VPN or proxy service.
• Your IP has been flagged for suspicious behavior.

If you are sure that everything is fine and you are not doing anything which was stated previously, then you will have to change your IP address. Restarting your router should do.