Water melon problem

[Talaititama]

Im having problems with my water melon plantation..it starts rotten from the front end..
Any advise of what happened

 

[FarmHand]

Where are you located and what's your growing setup?

 

[Smarty Plants]

Are they lying on the ground? If it's wet and warm where you are, they'll start to rot on the ground. Stick something under them a bit of straw or some cardboard. Good luck!