Error updating to 2.7 - dxpr_theme_post_update_n1_migrate_colors

Problem/Motivation

I am receiving the following error updating to 2.7 when running 'drush updb':

> [notice] Update started: dxpr_theme_post_update_n1_migrate_colors
> [warning] Trying to access array offset on null color.module:163
> [warning] Trying to access array offset on null color.module:163
> [warning] Trying to access array offset on null color.module:163
> [notice] DXPR Theme CSS file cache built for dxpr_theme
> PHP Fatal error: Cannot redeclare resolve_color() (previously declared in /var/www/html/web/themes/contrib/dxpr_theme/features/sooper-header/header-theme-settings-css.inc:242) in /var/www/html/web/themes/contrib/dxpr_theme/features/sooper-header/header-theme-settings-css.inc on line 242

I'm not sure if this issue belongs with dxpr_builder or with the theme.