Crash during creating rectangle and moving around

[OmerMersin]

Traceback (most recent call last):
File "/Users/omermersin/Developer/Syhme-Tools/SLabel/slabel.py", line 197, in mouseReleaseEvent
delta = self.current_mouse_pos - self.mouse_toggle
~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
TypeError: unsupported operand type(s) for -: 'QPointF' and 'QPoint'