Sign E (Explicit)

I'm find album Popularne Popevke Iz Podravine by Veseli Podravci .
There is same version of that albums . One is realised 1998, and other 2012 

On album from 2012 is sign E which mean Explicit (whole album and all songs are marked with E ).
 This is album with Croatian traditional folk song and no need to be marked with E . Also on album from 2012 all songs last 3 min .
On album from 1998 is no E sign,and there is correct lasting .
Why is same albums ,with same songs have different marked !?