EntityMetadataWrapperException: Unknown data property field_skype

I try to collect the Skype ID during the checkout. But I as soon as I go to the address section, I get

Fatal error: Uncaught exception 'EntityMetadataWrapperException' with message 'Unknown data property field_skype.' in /website/sites/all/modules/entity/includes/entity.wrapper.inc:354 Stack trace: #0 /website/sites/all/modules/entity/includes/entity.wrapper.inc(411): EntityStructureWrapper->getPropertyInfo('field_skype') #1 /website/sites/all/modules/entity/includes/entity.wrapper.inc(432): EntityStructureWrapper->get('field_skype') #2 /website/sites/all/modules/commerce_addressbook/commerce_addressbook.module(237): EntityStructureWrapper->__get('field_skype') #3 /website/sites/all/modules/commerce_addressbook/commerce_addressbook.checkout_pane.inc(122): commerce_addressbook_profile_is_incomplete(Object(stdClass)) #4 /website/sites/all/modules/commerce/modules/checkout/includes/commerce_checkout.pages.inc(119): commerce_addressbook_pane_checkout_form(Array, Array, Array, Object(stdClass)) #5 [internal function]: commerce_checkout_form(Arra in /website/sites/all/modules/entity/includes/entity.wrapper.inc on line 354

Any idea on this? Seems to be due to this module; addressbook works fine with others.