Plot rendering error: Argument must be an image, collection, or ContourSet in this Axes; metadata = {'Entries': 8885285, 'Name': 'InjVcalDiff_Map', 'Overflow': 0.0, 'Type': 'Histo2d', 'Underflow': 0.0, 'x': {'AxisTitle': 'Channel Number', 'Bins': 153600, 'High': 153599.5, 'Low': -0.5}, 'y': {'AxisTitle': 'InjVcalDiff', 'Bins': 101, 'High': 502.5, 'Low': -2.5}, 'z': {'AxisTitle': 'Number of Hits'}}