I have an error that I've been trying to decipher with no success. I am seeing multiple instances of it but I haven't noticed any particular pattern nor can I find anyone with a similar issue. Error below:
2018-07-30 10:35:21,099 INFO fetcher.FetcherThread - FetcherThread 63 fetch of https://abc.def.ca/node/1035 failed with: Http code=555, url=https:// abc.def.ca/node/1035
1. I don't know what error HTTP code 555 is
2. I am not seeing any pattern as between the various failing URLs
3. It always seems to be the same pages that fail
4. I've checked the pages in a browser and they load just fine
5. I've checked them with the parsechecker and indexchecker and they work fine as well.
Are there any other steps I should be taking to troubleshoot this, or does someone now what could be causing this issue?