So, the Baby Brezza Formula Pro Advanced Baby Formula Dispenser (inhaaaaaaale) has a bit of a flaw. Error 7 happens when the lid dislodges during bottle making. It happens more frequently later it its lifespan.
So, this is a simple TPU sleeve that goes onto the nub that is on the lid. This nub is supposed to press a button that stays engaged for the duration of the baby bottle making. Currently it dislodges easily. Perhaps due to age or use. The TPU fixes this.
I recommend a DOT of superglue into the sleeve and then press fitting it onto the plastic piece. This will make it so it doesn't stay engages when you go to take the lid off.