Fixed admin contact validation and repp error

app/models/admin_domain_contact.rb

@@ -1,6 +1,6 @@
 class AdminDomainContact < DomainContact
   include AgeValidation
-  
+
   validate :validate_contact_age
 
   # rubocop:disable Metrics/AbcSize
@@ -33,8 +33,6 @@ class AdminDomainContact < DomainContact
   def validate_contact_age
     return unless contact&.underage?
 
-    errors.add(:contact, I18n.t(
-      'activerecord.errors.models.admin_domain_contact.contact_too_young'
-    ))
+    errors.add(:base, :contact_too_young)
   end
 end

app/models/concerns/age_validation.rb

@@ -17,13 +17,17 @@ module AgeValidation
   def underage_by_birthday?
     birth_date = Date.parse(ident)
     calculate_age(birth_date) < 18
+  rescue ArgumentError
+    true
   end
 
   def underage_by_estonian_id?
     return false unless estonian_id?
-    
+
     birth_date = parse_estonian_id_birth_date(ident)
     calculate_age(birth_date) < 18
+  rescue ArgumentError
+    true
   end
 
   def estonian_id?
@@ -50,4 +54,4 @@ module AgeValidation
                  
     Date.parse("#{birth_year}-#{month}-#{day}")
   end
-end 
+end

app/models/domain_contact.rb

@@ -3,11 +3,10 @@ class DomainContact < ApplicationRecord
   # STI: admin_domain_contact
   include Versions # version/domain_contact_version.rb
   include EppErrors
+
   belongs_to :contact
   belongs_to :domain
 
-  validates :contact, presence: true
-
   after_destroy :update_contact
   attr_accessor :value_typeahead
   attr_writer :contact_code