Post date disappears [IPB 4.4.10]

Hello guys,

This happens with every topic, when you post something it starts by saying "posted just now" then goes to "x minutes ago", then "x hours ago" and as soon as it gets to "x days ago" it just stops displaying the post date at all anywhere in the forum for the topic. Not on the main board, not on the new topics block and not even in the topic itself, its just a blank space instead of a timestamp.
Has this happened to anybody? Any ideas how to solve this?

Any help is much appreciated, thank you!

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After trying to figure it out for a few days and asking here for help yesterday I made a second installation with different source files only to find out the problem was in the language pack as the keys needed to display that information were not translated... Problem is solved.