Unsure Whether PCB Components Are Leaking
Welcome to EE.SE!
That's just white glue to hold the components in place and survive vibration during shipping and use of the product. Perhaps there is electrolytic leakage in the second image, top left corner where it says IC01, coming from the blue capacitor just right to IC01. Can't tell for sure in the image. If you are up for it, unsolder the capacitor, clean the PCB and solder in a new capacitor with the same capacity and voltage rating and note the correct polarity.
Look for bulging electrolytic capacitors and burn marks in general.