Extensions (ad-blockers, VPNs, parental controls) can mistakenly block sites.
Temporarily switch to No protection to see if the site unblocks. Note: Only do this if you are absolutely sure the website is safe, and remember to turn it back on immediately after. Check Your Extensions how do you unblock a website on google chrome
Sometimes, Chrome itself blocks a website because of a specific security setting or a manual entry in the "Restricted Sites" list. how do you unblock a website on google chrome
Switch to Mobile Data: If the block is on your Wi-Fi network, tethering your computer to your phone's hotspot will use a different network entirely. To help me narrow down the best solution for you: how do you unblock a website on google chrome
Scroll down to the bottom and look for Additional Content Settings.