Hi,
Initially it is said migration from "SolusVM to Virtualizor" that may be possible, but the first question is what is the underlying virtualization technology being used on SolusVM installation ?
May be its SolusVM or may be its Virtualizor, it does not matter and all that matters is the underlying virtualization technology, whether it is OpenVZ, KVM, or Xen.
You go to preserve the underlying virtualization technology, or else you go to go manual ways of migration.
SolusVM is a master-slave type of model with Master supporting Only OpenVZ virtualization and slave supporting all three i..e, OpenVZ, Xen, and KVM.
On the other hand, Virutalizor does have this limitation. Also, Virtualizor has come up with feature called mult-virtualization and that can be handy too.