Coding is correct and I'm getting the solution also but I can't move to the next step

I can’t press the up next button and move forward and I have saved the code as well

Hello @harsh_kariwal, welcome to the forums! You are doing a freeform project. This means you need to do actually check the boxes yourself (by clicking on them) to enable you to move forward. This is because the projects are designed so you can self manage, so you can work at your own pace.