You are running an old version which had quite a few issues fixed in it. My first suggestion is to immediately download and install the latest version of the software, Har-Bal 3.0 release 4, which you can get from the original download link.
Log in using the customer name and order number from your invoice (the same as the credentials used to create the license key).
Be sure to uninstall the previous version before installing the new one and if you change from a 32 bit to 64 bit version or visa-versa then you will need to re-create the license key. I’d also recommend deleting the HarBal.ini which you can find in the folder,
C:\Users\{your user name}\AppData\Local\Har-Bal\Har-Bal 3.0
It might also help if you delete all the intermediate files that Har-Bal created (.hba, .hbfs, .hbfr and .hbir files).