Hướng dẫn fix lỗi Upgrading to 4.x.x Upgrading to vbblog An error has occurred. Please contact vBull

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- Disable product
vbcms, vbblog trong admincp đi
- Xóa file product_vbcms.xml, product_vbblog.xml trong thư mục includes/xml đi rồi
upgrade chạy upgrade
bình thường (hoặc update từng
product).