Problem updating macOS 11.0 beta

Help. Can't update macOS 11.0 beta to 11.4 public Says that this volume can't be downgraded and the harddisk icon grayed out I've unenrolled on the beta and downloaded the latest update but won't install P.S. on a MacBook Air (11-inch, Early 2015) running 11.0 Beta (20A5395g) Thanks.

Have you tried freeing up more space on the SSD?

Problem updating macOS 11.0 beta
 
 
Q