publishing shiny app with flex dashboard on shinyapps.io in R doesn't work

Posit Professional & Hosted Products shinyapps.io
1

I made a shiny flex_dashboard markdown report and I want to publish it on shinyapps.io but my account is not added

p1
p12096×900 176 KB

I clicked on Posit Cloud
p2
p22096×900 200 KB

put my token
p3
p32096×900 205 KB

and my accound isn't added
P4
P42096×900 192 KB

I tried another token and another account but the problem is same. and I tried to publish on RPubs but it seems it should be a knitted HTML file

WHAT IS THE SOLUTION what should I do to publish it