Delete or rename (as backup if you put there something important) folder:
/Users/yourname/.leviarcoin
For Linux: /home/user/.leviarcoin
For Windows: %APPDATA%/leviarcoin
Tried this and still crashing (Mac). Moved to Windows and the download file doesn't exist or the page won't load.
Try to refresh multiple times the page or do a ctrl shift r on the page.
Maybe is something cache related
We will check Mac OS wallet
Thank you!