My previous thread of the same name was closed due to inactivity but I've since revisited the issue and found a solution.

Problem: Running Doomsday Launcher results in recursive "iCCP: known incorrect sRGB profile" errors that prevent a user from launching a game.

Solution: You can avoid this issue by running Doomsday directly (thus circumventing the need for the Doomsday Launcher) by moving your Doom WADS into "/usr/share/doom/" (directory may have to be created) then running the following as your user from the terminal.
Code:
doomsday
To fix the Doomsday Launcher (making Doomsday much more flexible and simpler to use) run the following as root from the terminal
Code:
find /usr/share/doomsday/ -name "*.png" -print0 | while read -d $'\0' file; do
Here's the link that helped me resolve this issue. https://trac.wildfiregames.com/ticket/2184