mac os catalina and office
hi, i'm a teacher in France, and yesterday I uploaded mac os catalina in order to enfance my mac book pro. but today i can't use office anymore, and when I go to app store , i can't install / recent new version. must I buy it or is there an other way ? i'm desperate, i thought only to improve my tool and I lost all control and layout on all my teaching documents. .... pfffff ... please help me !