Hi fbod383,
Please try next:
1) Use the Task Manager to make sure there is not a hung mobione.exe process.
If you find such a process please kill it and then try starting mobione
2) if #1 does not work try deleting <user home dir>/.mobione/runtime/.metadata directory. Then start mobione.
3) If #2 fails, Open File Explorer to your Users\<Username>\Documents directory (in case you installed it in default location) and manually delete all MobiOne files and subdirectories. Reinstall Mobione. If using default location doesn’t work, please repeat this step but instead installing on default location try install it on C:\Mobione
Let me know how it goes for you.