Hello! Thanks for trying MP out, I appreciate it! Sorry to hear it crashed for you there; what OS are you using?
Also, do you mind sharing the log file from the "MasterPlan folder, located as follows:
Windows | C:/Users/<Username>/AppData/Local/MasterPlan |
Mac | /home/<Username>/Library/Application Suppport/MasterPlan |
Linux | /home/<Username>/.config/MasterPlan |