I wasn't able to fix it but the digging around I did seems to say that the error is because we cancelled the downloading before the image has had a chance to complete.
https://stackoverflow.com/questions/44397240/http-load-failed-error-code-999-189-for-task-in-ios-11?rq=1
I noticed that if I type "Brian Voong" quickly, while I'm typing the first name, I get those errors since some images weren't able to finish loading to completion, but if I typed it very slow and saw all the images load, there wouldn't be any errors below.
Yet still not sure how to fix it.