Where are you clicking “Enable Blockers”? There are 2 locations to do this, 1 - the url field on the double A, and the ad blocker app itself, or on the share menu option that should have a setting for the blocker. They actually work differently. I’ve had some web sites have issues when I used the Safari option from the double A to disable content blocking. I had to use the app’s own option from the share menu to disable all blocking to regain proper site functioning. That’s the more important one to use. Also in Settings/Safari/Settings for websites/Content blockers there are toggles for many of your web sites. You can turn them on or off.