Certain keys unresponsive after Screen assembly replacement

I recently took my laptop to a local repair place where they replaced the screen assembly after I dropped my computer. Some keys works, the trackpad works, and the power button works. Keys like i and k are unresponsive as well as the option, control, command and shift keys on the left bottom. Is there anything that could have happened to cause this to happen? My keyboard was working fine before I brought it in.

Thanks