Ensure that your Steam Trade URL is correct & your inventory is up-to-date. Occasionally steam servers are not responding correctly and had shown you item's that are unavailable to bet which prevents you from betting. If you're still unable to place a bet please follow this process:

 

- Click logout

- Refresh the website

- Log back in again

- Attempt to place the bet again

- Attempt to place different items in the bet

 

If the problem still persist, create a support ticket and we will respond as soon as possible!