Windows .exe It just... Vanished :( QuadM pack Crash and world deletion

[Pentatonix]

Operating System, bit type: Windows 8
Java version/update, bit type: Java 7, 64-bit
Launcher version: v1.3.3
Completed the troubleshooting guide (y/n): y
Console log, pastebin.com link: http://pastebin.com/mBYGQNEj
Description of the problem: I was playing on the new FTB QuadM pack in a single player world. I was playing for about 4 hours,taking time to save my world, take a break and hop back on. Suddenly my client just closed and went back to the launcher menu. I logged back on thinking it was one of those "Random Crashes" and when i click on SSP, my world is not there!! I spent a huge amount of time on a world. I went into the actual folder of FTB and looked into the saves and my world is still there. I dont understand how my world is not avaliable in game but i can see it in the folder.? I have made a back up just in case. Also i have not added any mods or modified the version of the game or launch type itself. Please help!

 

[JamiePhonic]

it crashed because of "Ticking memory connection"
did your PC perhaps try to go into sleep while you were away? in any case, ive never heard of minecraft spontaneously deleting worlds

 

[Pentatonix]

it crashed because of "Ticking memory connection"
did your PC perhaps try to go into sleep while you were away? in any case, ive never heard of minecraft spontaneously deleting worlds

No, i was playing when it crashed.. The world didnt "delete" i just i cant select it from the menu. I looked in the FTB folder itself and the world is still there.

 

[JamiePhonic]

is a file called "level.dat" in that folder?

 

[Pentatonix]

is a file called "level.dat" in that folder?

Here is the folder of my saves http://gyazo.com/edfa363d758e927e22a63be8beefdd8c[DOUBLEPOST=1390148736][/DOUBLEPOST]And the world itself http://gyazo.com/f84ee3facbf0b61097f03f19fb62e125

 

[Pentatonix]

is a file called "level.dat" in that folder?

I see that file called "level.dat" as you can see in the screen shot

 

[JamiePhonic]

I see that file called "level.dat" as you can see in the screen shot

no, i see a file called "level.dat_mcr" not "level.dat"
try copying the "level.dat_mcr" file and renaming it "level.dat"

 

[Pentatonix]

no, i see a file called "level.dat_mcr" not "level.dat"
try copying the "level.dat_mcr" file and renaming it "level.dat"

Done

 

[JamiePhonic]

Done

ok, and...? is your world back or still missing?

 

[Pentatonix]

ok, and...? is your world back or still missing?

Still missing :/[DOUBLEPOST=1390235463][/DOUBLEPOST]

ok, and...? is your world back or still missing?

Does the "Session.LOCK" file have anything to do with it?

 

[JamiePhonic]

i dont think so. i'd say your world is gone. sorry :/

 

[Pentatonix]

i dont think so. i'd say your world is gone. sorry :/

aww, ok :/ Its alright. Thank you so much for your help though!