I’m not 100% sure but that probably means your ad blocker doesn’t block “acceptable ads”. It can be a setting buried somewhere, if at all. Again, I’m not familiar with exactly your adblocker and the partner.ads.js but that’s just what I would guess.
If you’re on iPhone I’ve previously had success with AdGuard and they also have a good reputation around here.
EDIT: I was completely wrong. It looks to be a YouTube thing for loading ads. If it’s blocked it could potentially break YouTube. It could only be possible to block it using something like uBlock which I assume you cannot run. You may be able to block it if you can add rules in 1Block specifically for it.