2 error messages i can't seem to fix (CS0101 and CS0111)

My game worked just a few minutes ago, and now all these error messages pops up. I can’t solve the issue because i just started with Unity and coding today.

Error message 1:
Assets\Scripts\PlayerMovement.cs(3,14): error CS0101: The namespace ‘’ already contains a definition for ‘PlayerMovement’

Error message 2:
Assets\Scripts\PlayerMovement.cs(13,10): error CS0111: Type ‘PlayerMovement’ already defines a member called ‘FixedUpdate’ with the same parameter types

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Error pretty much tells you the problem - you have two scripts in your project with name ‘PlayerMovement’.