Fresh Install of EF-Tools -> EF Sheet Generator

[mangrove-art]

Prompts the following error:

Error Message:

Traceback (most recent call last):
File "C:\Users\js\AppData\Roaming\pyRevit\Extensions\EF-Tools.extension\EF_Tools.tab\Sheets.panel\col1.stack\EF_SheetGenerator.pushbutton\script.py", line 550, in
UI = EF_SheetGenerator()
File "C:\Users\js\AppData\Roaming\pyRevit\Extensions\EF-Tools.extension\EF_Tools.tab\Sheets.panel\col1.stack\EF_SheetGenerator.pushbutton\script.py", line 150, in init
self.populate_title_blocks_combo()
File "C:\Users\js\AppData\Roaming\pyRevit\Extensions\EF-Tools.extension\EF_Tools.tab\Sheets.panel\col1.stack\EF_SheetGenerator.pushbutton\script.py", line 313, in populate_title_blocks_combo
combo_item.IsSelected = True
UnboundLocalError: Local variable 'combo_item' referenced before assignment.