Отписываюсь по результатам:
Opencart.CMS 2.3.0.2.5
Залил bhm_pse-oc23-v0_5.ocmod.zip
Активировал.
Всё упало с ошибкой:
[Thu Feb 14 07:44:54.644686 2019] [proxy_fcgi:error] [pid 22947] [client 66.249.76.109:21440] AH01071: Got error 'PHP message: PHP Fatal error: Cannot declare class ModelToolImage, because the name is already in use in /var/www/site/catalog/model/tool/image.php on line 55\n'
Отключил в модулях/расширениях:
[Thu Feb 14 12:05:52.698758 2019] [proxy_fcgi:error] [pid 19031] [client 66.249.76.109:42636] AH01071: Got error 'PHP message: PHP Fatal error: Uncaught Exception: Error: Unknown column 'ss.change_name' in 'field list'<br />Error No: 1054<br />SELECT DISTINCT *, pd.name AS name, p.image, p.noindex AS noindex, m.name AS manufacturer, (SELECT price FROM oc_product_discount pd2 WHERE pd2.product_id = p.product_id AND pd2.customer_group_id = '1' AND pd2.quantity = '1' AND ((pd2.date_start = '0000-00-00' OR pd2.date_start < NOW()) AND (pd2.date_end = '0000-00-00' OR pd2.date_end > NOW())) ORDER BY pd2.priority ASC, pd2.price ASC LIMIT 1) AS discount, (SELECT price FROM oc_product_special ps WHERE ps.product_id = p.product_id AND ps.customer_group_id = '1' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special, (SELECT points FROM oc_product_reward pr WHERE pr.product_id = p.product_id AND pr.customer_group_id = '1') AS reward\n\t\t\t\t, (SELECT ss.name FROM oc_stock_status ss WHERE ss.stock_status_id = p.s...\n'
theme.ocmod.xml не ставил.
Адаптировать под UniShop надобно