Yeah, that's normal. You have to remember that KotorTool's pretty ancient, it's trying to contact update servers that no longer exist. Just turn off automatic updates in the options menu.
Might as well throw mine up as well. But I'm not going to bother with their life stories since I'm an altoholic so there are too bloody many. Click for embiggening.
New information as of 17 APR 2021. Information mirrored from Vulkk's page on the matter.
And that about covers it folks! If you want to use my link before the 27th, here's the link.