Lost files in A+ Folder Locker

Hi All,

I locked very very important files using "A+ Folder Locker" (free trial from https://www.giveawayoftheday.com/ and the Homepage is http://www.giantmatrix.com/products/aplus-folder-locker/

The process to locked and unlocked is take very long and my laptop was low battery and force to stand by while the locked processing not complete. Then I after unlocked this again the folder can't open it keep said that you need to format this folder but I didn't.

The file name have .afl type so there is other way to open it or not? kindly help.

Thank you so much,