Certain Apps crashes in Catalina
Without considerably more information, it's impossible to pinpoint the cause.

However, PhotoBooth is an Apple-supplied app that comes with the OS, so it should not crash under normal conditions. The likelihood is that you've got something installed which is causing both these apps to crash. 

I would recommend using EtreCheck, which is an excellent app that gives you a report of the 'state' of your system. It highlights third-party additions that are potential sources of problems, particularly if they are old and no longer compatible with a new OS.

You can upload the contents of the report here (or somewhere list Pastebin) if you need more help.