Try cleaning the pots
without the cleaner first.
Dry. Rotate each pot 100X's from left to right, sometimes pots are “sealed” and won't benefit from lube, but rotation will spread the internal lube around the pot.
For the 1/8 jack, just plug the plug in and out of the jack multiple times. Lube will work here: spray some lube on the plug and work it in and out of the jack.
Deoxit is the best I've found:
https://www.amazon.com/D5S-6-DeoxIT-Spray-Contact-Cleaner/dp/B071DZVYSCRegards,
Bob