Mahindra 105s def problems

I purchased a mahindra 105s mforce new in 2017 and since my purchase I've had nothing but problems with the def system the dealership worked on and throw parts at it. I have to regen almost every hour since new and only has 580hrs now warranty is out I'm told it's my problem. Has anyone had this issue? If so how did you fix it?

Mahindra 105s def problems