Lost disk image

Hi there, I'm not quite familiar with Espionage, but used a trial version and was very happy so far. Since I suddenly lost the disk image and all my files! Following happened: I guess the folder was unlocked that moment, when my Macbook ran out of battery. After restarting the machine, I tried to unlock my personal Espionage folder but got the message, that the disk image cannot be found. There was no possibility to remove the encryption though. Only the alias was left. When I opened the Program again, it said "Critical Alert! - Can't find "Espionage-Private".
I didn't use the back-up option, but have Time machine back-up from that time before. Meanwhile, the Trial is unvalid and I cannot even try to access the Esp. program nor am I able to see if the disk image had been backed-up? Does anyone think I will have a chance on it? I'm so unsure by this that I really hesitate to buy the software if it is so unreliable...
Thanks a thousand time for helpful words
Strandwolf
I didn't use the back-up option, but have Time machine back-up from that time before. Meanwhile, the Trial is unvalid and I cannot even try to access the Esp. program nor am I able to see if the disk image had been backed-up? Does anyone think I will have a chance on it? I'm so unsure by this that I really hesitate to buy the software if it is so unreliable...
Thanks a thousand time for helpful words
Strandwolf