Google webmaster crawl errors

Google Webmaster tools reports that I have 44 “Not Found” crawl errors on my website https://theaibs.tv

One example of a reported “Not Found” URL is:
https://theaibs.tv/KdNSL/the-2010-aibs/the-2010-aibs-judges/debra-soon/
whereas I see the only page like this as having the URL
https://theaibs.tv/the-2010-aibs/the-2010-aibs-judges/debra-soon/
i.e. without the 5 characters after the domain name. All the problem pages have the same pattern (some with two sets of 5 characters added in the middle of the URL).

Can anyone tell me please what the problem URLs refer to? Does it matter that I have “Not found” errors on these URLs given that what I think are the “correct” URLs all work?

Note – I am running Sliding Door Theme

Thanks
Roger