How do I disable csrutil in MacOS BigSur?

Os version: macOS BigSur Version:11.2.2

Very recently bought MacBook Air.

I just wanted to disable to csrutil for a simple process and will enable it back on when it's done.

As adviced by apple developers

I gone into recovery mode by pressing command R and power button.

After going to the terminal I typed csrutil disable in the terminal, but the results were

The sketched part was my name.

even though turning off csrutil is not recommended ,it's for a small process and I'll turn it back on later.

Please help me on this

Error I've encountered

csrutil:Failed to update security configuration for "Macintosh HD": Failed to create a local policy

Thanks in advance :)