If your progress is not loading up to Facebook then you should troubleshoot your connection on your iPhone: https://care.king.com/en/candy-crush-saga/lost-your-connection-to-facebook-ios
Maybe the notifications stuck, did you collect something earlier on? If something isn't working as it should, try going through the general troubleshooting steps given here: https://care.king.com/en/candy-crush-saga/loading-crashing-issues-ios
If it's not syncing then the FB troubleshooting is the best place to start? https://care.king.com/en/candy-crush-saga/cant-get-your-games-to-load-on-facebook-check-this-out If it's still the same after that it might be an idea to check which game app version you have installed.
It looks like they're looking into it, keep an eye here for any updates on the situation. https://care.king.com/en/candy-crush-soda-saga/im-not-getting-credit-for-the-fish-i-make-in-the-fish-tournament-it-appears-no-on-else-is-getting
Yeah seems to be currently missing in the app version, they load fine on PC platform thoguh. It's been picked up and raised by the moderators and is being looked into, hopefully the next update should sort it out.