Could you clarify what kind of Virtualizor server issues you're facing? Here are a few common problem areas to help narrow it down:
Common Virtualizor Issues & Fixes
VMs Not Starting or Crashing
Check disk space on the node (df -h)
Review logs: /var/virtualizor/log/ or /var/log/virtualizor.log
Make sure virtualization (KVM, OpenVZ, etc.) is supported and enabled in BIOSbasketrandom