Installation error after changeset

var productTemplateSimple = _productTemplateRepository.Table.FirstOrDefault(pt => pt.Name == "Simple product");
            if (productTemplateSimple == null)
                throw new Exception("Simple product template could not be loaded");
            var productTemplateGrouped = _productTemplateRepository.Table.FirstOrDefault(pt => pt.Name == "Grouped product");
            if (productTemplateGrouped == null)
                throw new Exception("Simple product template could not be loaded");

var productTemplateSimple = _productTemplateRepository.Table.FirstOrDefault(pt => pt.Name == "Simple product");
            if (productTemplateSimple == null)
                throw new Exception("Simple product template could not be loaded");
            var productTemplateGrouped = _productTemplateRepository.Table.FirstOrDefault(pt => pt.Name == "Grouped product (with variants)");
            if (productTemplateGrouped == null)
                throw new Exception("grouped product template could not be loaded");