I cant build my game because of these 3 errors. Please help.

what should I do!

I have no idea What those errors are, but what I would do is the typical customer service response… turn it of and turn it back on again lol. But seriously, try restarting unity, if that doesnt work, try restarting your computer. If that still doesnt work you can uninstall Unity and Unity hub (dont worry your project is saved on your hard drive and will remain there) then reinstall unity hub and install fresh version of unity (latest supported stable build) and try it again. If all that doesnt work then it is well beyond my depth and maybe one of the much more knowledgeable people here can help you further.