Instep guard ripping off plate shoes - repairable?

[7in60]

I have the New Balance umpire plate shoes. The right instep guard has ripped away about 1" from the inside edge. The other is worn a bit on both sides. Is this common among plate shoes? Can they be repaired?

I wore the shoes for 2 years (~40 games). I actually just replaced the second lace in July, so the shoes barely outlasted the laces. I contacted NB about a warranty replacement due to a manufacturer's defect and they said I could send them in. I don't have anything to lose so I might as well do it.

I did buy a replacement pair last month because I love the shoes and need something to wear next year.