Broken/missing handler for roles in og_members_overview

[MPParsley]

On the og_members_overview view I get a broken/missing handler for the roles entity reference:

Configure field: Broken/missing handler
The handler for this item is broken or missing. The following details are available:

• id: roles
• table: og_membership__roles
• field: roles
• relationship: none
• group_type: group
• admin_label:
• label: Roles
• exclude:
• element_type:
• element_class:
• element_label_type:
• element_label_class:
• element_label_colon: 1
• element_wrapper_type:
• element_wrapper_class:
• element_default_classes: 1
• empty:
• hide_empty:
• empty_zero:
• hide_alter_empty: 1
• click_sort_column: target_id
• type: entity_reference_label
• group_column: target_id
• group_rows: 1
• delta_limit: 0
• delta_offset: 0
• delta_reversed:
• delta_first_last:
• multi_type: separator
• separator: ,
• field_api_classes:
• entity_type: og_membership
• entity_field: roles
• plugin_id: field

Enabling the appropriate module may solve this issue. Otherwise, check to see if there is a module update available.