Hi,
when my system has low memory .
the postman doesnt show its icons .
how i can solve this ? i have to use old version ?
my postman version is: 11.46.0.0
Welcome to the Postman Community 
I can see the top menu labels (those don’t have icons) not completely rendered in that image but as for icons, they are all displayed. 
Have you tried use the “Clear Cache and Reload” option within the window level menu options?
Does logging out and logging back in again show them in the app?
Do you see they displayed on the web platform https://go.postman.co ?