[BirdOPrey5]

In the mod settings, the one that say you shouldn't modify unless you know what you're doing, you would need to modify what is there based on your language version of PHP.

On php.net change to your language, then search for the date() function, and there will be a list of letters you can use for the day of the month, the name of the day, and the name of the month. You need to replace them in the settings with whatever your language uses. It's possible some names of months or days won't fit right, the calendar was designed for English words.