403s and Unknown Errors

Hello. Broken Link Checker was working great up until about two months ago but now is reporting 150 links as broken. The vast majority are “Unknown Errors”, but also tens of 403s, 405s, 406s. I’ve manually checked very many of these and the links were all fine. I checked with hosting and cURL is enabled both on the staging site and the live site. I also checked the live site (an exact copy of staging) and the results are the same.

Not sure what to do and hoping you can help. Thanks!

Here is the log for one such “unknown error” where the link is actually working:

Link last checked: May 16, 2025
HTTP code: 0
Response time: 0.191 seconds
Final URL: https://www2.gov.bc.ca/gov/content/employment-business/business/liquor-regulation-licensing/about-lcrb/bulletins/bulletin-23-01-extension-of-tesas-to-dec-31-2024
Redirect count: 0
Instance count: 1

This link has failed 2 times.
This link has been broken for 1 hour.

Log: [Warning] Could't follow the redirect URL (if any) because safemode or open base dir enabled
Empty reply from server [Error #52]
=== (No response) === Response headers Request headers

GET /gov/content/employment-business/business/liquor-regulation-licensing/about-lcrb/bulletins/bulletin-23-01-extension-of-tesas-to-dec-31-2024 HTTP/1.1
Host: www2.gov.bc.ca
User-Agent: WPMU DEV Broken Link Checker Local Engine
Accept: /
Accept-Encoding: deflate, gzip, br
Referer: https://thriveadvisors.wordkeeper.net
Connection: close
Range: bytes=0-2048

Link is broken.

The page I need help with: [log in to see the link]