English: EWWW Image Optimizer uses open-source tools to enable free mode, but your server is missing these: %1$s. Please install via the %2$s to continue in free mode.
Dutch: EWWW Image Optimizer maakt gebruik van open-source gereedschappen om de gratis modus in te schakelen, maar je server mist deze: %1$s. Installeer via de %2$s om door te gaan in de gratis modus.