Brushless Motor connection problem

Hello, I purchased a Radiolink pixhawk for my project but my engine is having a connection problem and it keeps beeping beeping. When I try to do esc calibration through Mission Planner, please ensure your version is AC3.3 +. I get the warning. How can I fix this?

Good day,
which firmware version are you running?
before esc calibration don’t forget to calibrate first your RC.
your esc are with bheli firmware?

I am using Plane 4.0.5 Official version, I have done all the calibrations.

ok… firmware of the esc

I have no idea about it.