I ran into this error "LVMDriver : Failed to create LVM Instance" after a new CentOS setup. Support pointed me to this KB https://www.veeam.com/kb2334
Note in my experience, the solution was the other way around. I needed to change the units value from r to h, not h to r (as stated in the KB). I found another Veeam forum post with the same problem and it was successful changing the value from r to h.
Perhaps the KB article can be fixed?