Can't Export video

i am wxporting video in beta version but i dont show any seq in export tab or i press cntr+m its dose'nt work, and in export meny its shows there is no source detection.

 
System info
    Application: Premiere Pro (Beta) v22.2.0.53
    OS: Windows v10.0.19042, RAM: 63.93 GB GB, CPUs (logical): 16