Outside the permitted age group:
This means your age is outside the age range of the product you are trying to register for.
You need to contact the club and request they open the age range.
Alternatively, you can register for a different product.
Outside the gender group:
This means that the gender set on your profile does not match the club's requirements.
You should contact the club directly to enquire if they have created the product to allow the correct gender of people to register.
Exceeded max registrations per season:
You can only hold one active club football playing registration per season.
If you wish to be registered more than once as a player, you would need to contact your club, who will, in turn, discuss it with the member federation.