Which files?

This happens to me too sometimes because of the internet

Do you have some examples of the mods that don't seem to work?

(SISL Mega Pack, Btg T beacon, ETS2 Off road light) The mode of decorating the exterior and interior of a truck like this is not applicable

Some of those mods might not be for your game version. Check the mod description to see if it is supposed to be used for that version

Sisl's mod works on just about any version, more or less the only thing that can prevent that from working is a mod conflict, or a truck mod that doesn't support it, but chances of those things happening are slim, maybe not everything will work depending on the locators that are supported by the truck mods.

edit: Just created a new profile and added those 3 mods in no specific order and they all worked fine on 1.49.x, except the Daf XG and XD don't support the lights mods because they go on the roof grill and those trucks don't have that (yet).

have same problem by Kass Brutal advance ecc. ecc. not work load the game 50% after crash at desktop and not possible unistall this mods