Unintelligible errors in the console

Hi,

can anyone tell me what kind of Erorrs are in my console and how I can fix them?

Thanks!!

You have a memory leak.

Is this on a newly created project or you already have written code doing things?

   If it is on a newly created project, then start to check any packages you've installed.  If you haven't explicitly installed any packages.  Try restarting unity, and if no love, reinstall. 

Otherwise, google the error - you’ll find plenty of threads with information.