Can not reinstall macOS

So, my mac (early 2015 macbook air) was running kind of slow, and i figured i would try to reset it to factory settings. So i went and deleted the macintosh hd drive and tried to reinstall the macOS but kept receiving some kind of error message. So i tried a couple of different things, but now i am really stuck and need your help! Now when i go to the disk utility the disk previously called macintosh hd is gone, and also when i try to install the OS there is no disk option to download it to. I’ll see if i can post a couple of pics. So, is it something i can fix or is it pretty much broken beyond repair?

Thanks

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