Issue with "libbpf_rs::map::Map::attach_struct_ops::{{closure}}" Affecting 'scx_...' Execution

[AminAvan]

It seems there is an issue with "libbpf_rs::map::Map::attach_struct_ops::{{closure}}" that hinders 'scx_...' from running smoothly. I've provided the complete code and error below:

root@my-VirtualBox:~# scx_rustland 
Error: Failed to attach struct ops

Caused by:
    bpf call "libbpf_rs::map::Map::attach_struct_ops::{{closure}}" returned NULL
root@my-VirtualBox:~# 

Thanks in advance for your time & attention.