Hello @LilianEllis Hearty Welcome to the Candy Friends section of our friendly King Community
I do not think that logging through Facebook was the reason for your Piggy Bank to disappear!! It could just be a glitch!!
Try these steps ---> Clear cookies / cache on your device --> Force close the App --> Turn off your device and restart it after few minutes ---> Turn on the WiFi and log into the game ---> See if that helps to bring back the Piggy Bank.
Please post back and let me know how it went! If you tap on "Type your Comment" box located below, you will be able to post back.
Can you show me a picture your, how your Map looks? Here is a web page that tells you how to take a screenshot https://www.take-a-screenshot.org/
By the way, after your Piggy Bank disappeared, did you play any levels? May be it will pop out again, once you win a level and earn the stars, the Piggy will come back to collect those stars!!
Just a thought!! If that too doesn't work, may be we can try reinstalling the App. But, as a last resort only, because "deleting" the App deletes our stocked up boosters too!!
Please post back with the screenshot, tap on "Attach Image" icon located in the tool-bar (a little farther to Emoticon), then select "Choose Files" to upload the pic from your device.
Talk to you soon! Have a great rest of the day/evening!