W A S D & Space On Keyboard Are Not Working

As said in the title, The player can't move or jump with W A S D or Space

 

Steps to reproduce

1. Use Keyboard & Mouse to play Minecraft
2. Go to world
3. Use W A S D & Space keys to make player move & jump

Observed results:

You hold Ctrl/Alt key and press W A S D or Space keys

What should have happened:

Be able to move & jump when using just W A S D & Space keys