Continuing the discussion from Lines not appearing on model:
So, yeah @nazirashna4 , sketchup needs either a licence or a subscription. licences are either pre 2021 or very specific, and I don’t think you would apply (unless you manage an university or a training centre ? )
Now, Please fill in your profile in a meaningful manner. here is a step by step.
The free plan is online only, and doesn’t require a licence.
The fact you mention opening the program tells me you installed sketchup pro, not free, and that one needs a licence.
your operating system is not school. maybe you use a school computer, but it’s a pc or a mac (that would be minimum info). things work differently in both cases.
your graphics card is not 2017. considering your issue right now, this is not a super vital info.