The debug mode is widely used to see the errors on your shop and when: you get blank pages; you get 500 Internal Server Error; you have strage issues with your shop and don't know where to start; Edit: Debug mode on PrestaShop 8.0 PrestaShop Dashboard > Advanced Parameters > Performance > DEBUG MODE PANEL > Set it to YES Debug mode on PrestaShop 1.7 PrestaShop Dashboard > Advanced Parameters > Performance > DE
