Seems i've found two other threads with this issue https://forums.nexusmods.com/index.php?/topic/4912965-downloading-mod-issue/ and https://forums.nexusmods.com/index.php?/topic/4970350-unable-to-download-mods-and/ I posted this cause I couldn't find any threads but somehow these popped up afterwards. No reason to worry about it now.