Error/bug/no info GameMode Class Aliases are deprecated

as of 4.14 i get this error/warning
LogLoad:Warning: GameMode::GameModeClassAliases are deprecated, move to GameMapsSettings
which also causes my gamemode not to load.
the gamemode alaises used to be in the defaultgame.ini
do we have any info on how to fix this warning/error

btw i found the answer myself, just download the shooter demo and check the ini files