In open shift account i had hosted one word press app
"http://music-logavdm2.rhcloud.com"
I also tried the open shift client tool to list the app
app music but that also tells the app does not exist
Yesterday i update the blog but today that application not displayed on the web console. and also the
"http://music-logavdm2.rhcloud.com"
not found found DNS address error.
It seems your app may have been removed (possibly due to OpenShift ToS infringement).
In that case, you would receive a notification email with a reason of the removal. You can try contacting OpenShift support, if you received no such email.