Blur Virtual Background Error

I am using MacOs Monterey version 12.6.1 and already updated my zoom to Version: 5.12.3 (11845), before the update Blur option is available but after the update it wasn't available. I have tried:

1. suggestion on https://support.zoom.us/hc/en-us/articles/360061468611-Using-blurred-background-#:~:text=Join%20a%20Zoom%20Meeting%20or,Click%20Blur%20My%20Background
2. try adding the blur feature from Apps  but it appears as "an error has occurred"
3. Re-install my zoom and signed out-signed in numbers of time 

but none of these work.

this is very inconvenient as I use zoom on daily basis,

please help!

I appreciate anybody who can respond, thanks.

btw I use zoom basic.