How to understand compiler and other errors and even fix them yourself:
In the specific case above, you have at least half of your identifiers mis-capitalized.
Capitalization, spelling and punctuation have to be 100% PERFECT for programs to work.
I see mis-capitalization on line 4, line 10 (in five (5) separate places on that one line!), etc.
Go look up the scene manager docs to see what I mean.
And you’re missing a closing brace on your class.
Again, EVERYTHING has to be perfect, no room for errors, not even one character wrong.