Calling _block_markup_create_close creates an undocumented dependency and calls a function in block_markup.module that doesn't have anything to do with fields. This should probably be calling _field_markup_create_close. If so, then this might be an attempt to allow multiple wrappers at any level by using an array of wrappers. If that is the case, remove that functionality for now and look to add it back at a later date. Usage of this module has shown no need for allowing multiple nested outer, inner, or item wrappers. If needed, it is possible to add wrapper markup and then use prefix: and suffix: to add any extra markup.
Calling _block_markup_create_close creates an undocumented dependency and calls a function in block_markup.module that doesn't have anything to do with fields. This should probably be calling _field_markup_create_close. If so, then this might be an attempt to allow multiple wrappers at any level by using an array of wrappers. If that is the case, remove that functionality for now and look to add it back at a later date. Usage of this module has shown no need for allowing multiple nested outer, inner, or item wrappers. If needed, it is possible to add wrapper markup and then use prefix: and suffix: to add any extra markup.