@tesparza Thanks a ton for your good will to help! Appreciate.
It’s a paid software. I need it to keep the students from destroying the computers.
I have found another thread talking about this RRRx software (which does the same so I don’t mind using it instead) and he fixed it by replacing the boot file, he used ipxe.kpxe instead of undionly.kkpxe.
And here is the proccess I made trying to figure out the problem: https://forums.fogproject.org/topic/15636/unable-to-boot-properly-after-radix-smartrecovery-installed/2?_=1628169887941