Macbook Pro crashes after update.

I have for a long time used Draftsight for 15" Mac Macbook Pro (Draftsight Beta) (64 Bit

When I started it 2weeks ago  I got a pop-up saying that the activation has expired. and the day after I got a mail with the info regarding the "DraftSight New Release Available V1R5.0"

I deleted the old Draftsight, and downloaded and installed the new version.
When attempting to start the new version it crashes during the start.

I have uninstalled it many times (7 times until now) cleaned the computer and downloaded again and installed. but it always crashes during the start up.
The error report always indicate the same error.

Extract from error report:

EXTRACT*********************************

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)

Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000VM

Regions Near 0:-->     __TEXT                 0000000100000000-00000001009f7000 [ 10.0M] r-x/rwx SM=COW  /Applications/DraftSight.app/Contents/MacOS/DraftSight

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread0  

com.3ds.draftsight                0x0000000100362826 CFxUIImpl::CreateSubToolbar(QToolBar*, CFxUIToolbarItemCollection*) + 1121  

com.3ds.draftsight                0x0000000100362e73 CFxUIImpl::CreateToolbar(CFxUIGroup*, CFxUIToolbarItem*) + 5752  

com.3ds.draftsight                0x0000000100365041 CFxUIImpl::CreateToolBars(QMainWindow*) + 2913  

com.3ds.draftsight                0x0000000100201682 CFxSystemServicesImpl::OnMainFrameCreated() + 1624  

com.3ds.draftsight                0x0000000100035ea8 CFxApplication::MainWindowCreated(QMainWindow*) + 285  

com.3ds.draftsight                0x00000001002f4f6f main + 43996  

com.3ds.draftsight                0x000000010000fac4 start + 52

EXTRACT*********************************

I really need the draftsight so please Help me

Best regards,

Arne