The internet browser is having difficulty loading a webpage/website . . . and keeps trying, to the point of . . . the result that you reported. Sometimes, study of the following, can fix the issue:
Tips regarding Brave Shields:
I have more success, with:
Brave Shields UP
Either Allow All Cookies or Block 3rd Party Cookies, but NOT Blocking All Cookies
Allowing JavaScripts from specific sources, but NOT Allowing All JavaScripts
Trackers & Ads treatment: Aggressive (at first), and then incrementally relaxing that setting
Fingerprinting (aka footprinting) blocking: Strict (at first), and then incrementally relaxing that setting