You may encounter a “cannot add to cart” error when trying to purchase Sons of the Forest on Steam. This can happen for several reasons, but mainly when many users try to buy the same game at the same time. To help you, we are going to explain how to fix the error “Sons of the Forest cannot be added to cart” on Steam.
Related: Is Sons of the Forest a sequel? Answered
How to Fix Sons of the Forest Cart Error on Steam
Check Steam Server Status
Before you start playing with other things, we recommend that you check the status of the Steam servers. To do this, you can visit Steamstat.us. This site will let you know if there are any issues with the platform. You can also check the servers on Downdetecter. If both sites indicate that there is a problem with the servers, your only option is to wait.
restart steam
Restarting Steam may clear any errors that may be preventing the system from adding Sons of the Forest to your cart. Instead of just clicking the cross button located in the upper right corner of Steam, right-click its icon in the taskbar and then select “Quit Steam”. Then launch Steam again and try to add Sons of the Forest to cart.
Gamepur screenshot
Related: How to use Kevin in Sons of the Forest
Use Steam website version
Some of you might not know this, but you can also access Steam in your browser. If the app gives you errors, you can try your luck with the web version. All you need to do is visit the official Steam website, log in to your account and purchase Sons of the Forest there.
If none of these options work, you can try waiting for Valve to fix issues with Steam; alternatively, you can try to create a support ticket with them.
Source