I would say no new transaction will be processed anymore. Well :/ cannot say right now why that happened but I guess we need to wait for V0.57.
could it happen because I generated 2 million coins?
btw: 2 million coins displayed in wallet like
2.05043eWell at least it
should not be the cause - the system surely must be capable of dealing more transactions per second. Additionally everything looked quite well even after the blocks containing 70 / 45 / 44 etc transactions. It will take a deeper look into the error.logs and code to say what went wrong.
Thanks for reporting that it uses exponential format. Just changed it to the "normal" representation.