Error in registration

I created fields using community builder for registering user and I get the following error when I try to register


Password : Password and verification do not match, please try again.
Contact No : Please enter a valid Contact No: maximum 10 characters: you entered 13 characters.
No of Children at Home : Please enter a valid No of Children at Home: maximum 2 characters: you entered 13 characters.
No of Children Studying : Please enter a valid No of Children Studying: maximum 2 characters: you entered 13 characters.
No of Children Working : Please enter a valid No of Children Working: maximum 2 characters: you entered 13 characters.
Land Owned : Please enter a valid Land Owned: maximum 4 characters: you entered 13 characters.
Land Rented From : Please enter a valid Land Rented From: maximum 4 characters: you entered 13 characters.

why does this error show up? What mistake am I doing? Appreciate help from those who know.

Please read the messages carefully. They are validation errors for inputs on your registration form. You did not supply your fields the appropriate data that you configured them to expect. You can adjust their validation within CB > Field Management by editing the fields as needed.