PLEASEPLEASEHELP

My bose headphones stopped connecting to my computer. They are wireless. They have worked with this device before but this evening when I connected them no sound played but it said it was connected. So I removed the device because that's what the internet said to do and now it can't find the device. It connects with my phone but not the computer. PRETTY PLEASE IDK WHAT TO DO

Edit: it's the Bose quiet ultra comfort pro(or plus idk the name)

The website page for how to reset the device list on the headphones is down does anyone know how? (:3 」∠)

Edit 2: Page is still down but basically when I touch the bluetooth button it says the device it should be connecting to, makes the beginning to connect noise, says the device name again(connecting to) and then does the deconnect sound(i think its this short sad sound like kinda turning off noise)

EDIT 3: I FIXED TYSM WAAAAAGHHGHAGHHG i did the hard reset and all of a sudden my computer could find it ILY ILY ILY TYSM