Hi,
It's giving an error because screen no is different for your 0011 & 0012 subtype.
Earlier you had recorded It21 but the screen number was different from the current upload. So you have to create a recording for these two subtypes. but before that check both of the Infotype+subtype(IT0021/0011 & IT0021/0012) combination screen number.
Regards,
Sankarsan