You have this error because the program is archived.
Archived means it's stored in flash and will not disappear with a ram clear.
Flashapp could be launched from flash but usually you should put a program in flash memory only when you don't use it.
An archived program have a star "*" before its name.
To unarchive it, press "2nd" then select "Unarchive" then go to program menu and select the program and press "enter".
The star will disappear and you will be able to launch the program normally.