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What hardware are you using? According to

AMD-Vi: AMD IOMMUv2 functionality not available on this system - This is not a bug.

it is not an AMD system.

@abundant-account-48953 its amd. # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 48 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 12 On-line CPU(s) list: 0-11 Vendor ID: AuthenticAMD Model name: AMD Ryzen 5 PRO 5650G with Radeon Graphics

I'm wondering. The mentioned error should only occur on non-AMD CPUs. Do you have enabled all virtualization settings in the BIOS?

thanks @abundant-account-48953 that was the issue. Its works now