A cupboard door that won’t close properly is usually a hinge adjustment.
Step 1: Open the door and look at the hinges — most modern hinges have adjustment screws.
Step 2: Turn the side adjustment screw to move the door left or right.
Step 3: Turn the depth adjustment screw to move the door in or out.
Step 4: If hinges are broken replace them — soft close hinges cost $15-20 for a pack.