Hello, @issygirl. It is a bit difficult to know what the errors are with little information about them. However, I spot some of the errors.
The first error is in the name of FixedUpdate function. The letter f in the function name has to be uppercase void FixedUpdate().
The other error is this: Handle.Movement ();(horizontal);. It’s located in the FixedUpdate function. To fix resolve the error, just change it to Handlemovement( horizontal );.
I hope that’s all of your errors. If not, please provide us more information about the error. Thanks!