So it seems like the Plum is dripping. This can happen due to a few circumstances. After the Plum pours the last glass of wine from a bottle, there can be a build-up of wine droplets on the inside wine circuit that can result in a small drip. Plum recommends removing an empty bottle once finished to avoid this.
A Plum may also seem to be dripping if the protective packing tape that runs along and under the spout is not fully removed. Wine can get caught if the tape is left on and will appear to be dripping.
Plum has two separate wine circuits so its necessary to know which side is dripping. Typically the issue with dripping is brittle cork particles that have become stuck in the wine solenoid. To solve this, change the taste pour to 1oz under Settings > Pour Size then run 5 single tasting 1oz pours to clear the channel. This should resolve it instantaneously.
The next step, if dripping persists, is to finish that bottle of wine. This can be done by drinking through the bottle as normally or by going to Settings > General > Remove Bottle, then having a decanter ready as this will entirely drain the bottle.
Run a cleaning cycle next. This process uses the cleaning kit that came with your Plum or available here: https://shop.plum.wine/pages/accessories. Fill the cleaning bottle halfway with very warm water, add 1 cleaning packet, cap and shake vigorously for 20 seconds. Then remove the cap and finish filling the cleaning bottle with hot water to the neck, then re-capping the bottle. On the screen of the Plum, go to Settings > General > Clean, following the on-screen instructions.
Please reach out to email@example.com if dripping persists.