You need to provide more information for Edge Extension (used filters). I blocked an adserver, but even without it I got no popup. Fixed adblock detection (update available for Spanish filter in about 3-4 hours).
Please enable Spanish filter (if not already active). To access settings, click on AdGuard Extension icon -> "cog wheel" to open Settings. Then click on "Filters" and search for "AdGuard Spanish/Portuguese filter" (please note the name may be localized, depending on our translator's choice). Now it should download that filter's content.
I fixed a few additional overlays in our Spanish filters, so the issue should be gone if you have enabled that filter and manually update in about 4 hours (the button next to the filter rules count in above's menu).