you may have already done everything prior to the bolded text. but it's a lot more time-consuming to skip to that step if prior ones would work.
one more thing, because the problem is occuring 2+/wk, you may have something (eg, av, antimalware) on your computer that is corrupting/deleting the repaired cc app. if that's the case, it's not a cc problem and none of these 'fixes' will work.
first try, resetting the cc app: To reset the Creative Cloud desktop app, make sure it's in the foreground, then press: