SONRPCException: -32603: Could not create new block (-32603)

[jjz]

Traceback (most recent call last):
File "copernet/walle/test_framework/test_framework.py", line 131, in main
self.run_test()
File "copernet/walle/pruning.py", line 393, in run_test
self.create_big_chain()
File "copernet/walle/pruning.py", line 69, in create_big_chain
self.nodes[1].generate(200)
File "copernet/walle/test_framework/coverage.py", line 48, in call
return_val = self.auth_service_proxy_instance.call(*args, **kwargs)
File "copernet/walle/test_framework/authproxy.py", line 150, in call
raise JSONRPCException(response['error'])
test_framework.authproxy.JSONRPCException: -32603: Could not create new block (-32603)

[whitefen]

copernet/copernicus@a2b83c1 fix this problem