Hi there,
just jumping here – I have unfortunately zero time and this is only a small shop, so it won’t matter much, and I just disabled the global labels / and then disabled the entire plugin, as this was the only reason I used the plugin for.
I also got those SALE stickers the OP reported. I don’t know exactly when those came up. It’s on a small store built with Divi.
I was surprised as nothing was changed on my end, but suddenly those came up.
I tried to quickly fix it by..
1. changing the label name from “SALE” so something useful
2. re-applying the conditions as those were cleared out for some reason, i.e. I applied labels to selected products → however, this did not work, so I did not went further down to troubleshoot and just disabled it
Hopefully that helps, as I think something must have changed on the plugin itself.
best regards
Markus