Is it possible to get access to the full error report? It's difficult to tell what happened based on the screenshot you gave.
Go to your game directory, find the 'logs' sub directory, and there you'll find a file "latest.log". That contains all this information. Copy & paste the relevant sections in a message here (use the 'code' button). When in doubt: empty this entire directory (logs), then start the program, then copy the entire contents of 'latest.log' in here (because then you'll only have the logs of the crashing session).
I think I have found the problem, it is a lit piece of redstone ore , everytime I log in though the time it is lit for shpould go down so it should work soon
