Why did you edit the file?
Have you defined the new MLB service model and changed xApp and RANSimulator accordingly?
The current MLB xApp does not have a specific MLB service model.
As you can see on the community call, MLB xApp communicates with KPIMON and PCI xApps through onos-topo to get the monitoring results (# UEs / cell and neighbor cell list).
Then, MLB xApp sends the control message to the cell to change the OCn value through the RC-Pre service model.
If you did not change the MLB xApp and RAN simulator, you should not change the model file.
Otherwise, RAN Simulator may be failed.