office won't work properly on MacOS Mojave

So I unfortunately ( I don't even know how it happened) ended up upgrading to MacOS Mojave. from the onset, it took forever and eventually it ended. And it worked ( I thought so). only for me to open my word application to find out that some of my ribbon commands are irresponsive. they appear alright but when I click on them, they just don't work. I realised my powerpoint and excel are having the same issues. my powerpoint for an instance is worse. most of the commands in the home button don't work. is anyone experiencing the same thing or its just me. 😢