My Deutz Fahr Tractor's Front Weights Fell Off

My Deutz Fahr 5080 e GS tractor is giving me a lot of trouble. The front weights fell off while they were working in the field. How could that be? I've found four of the weights so far, but I'm still missing one. This has put me in a bad situation. Even though this tractor has only been used for 30 hours, it has stopped all of our work. It's very annoying, and I need a solution to this problem right away. I'm asking for help right away so we can solve this problem and get back to our other work. This tractor has been a big letdown, and I need it to start working properly again.