ValueError: Cell k2 doesn't contain an image

Question

I am stuck with this python code regarding SheetImageLoader. The error message says that there's no image in the cell I am referencing, but there's an image in that cell.

from openpyxl_image_loader import SheetImageLoader
import openpyxl

#ADD PICTURE TO PICBOX(TOPLEVEL)
def pic_upload():

    excel_path = ('DData.xlsx')
    file =openpyxl.load_workbook(excel_path)
    sheet=file['Sheet1']

    image_loader = SheetImageLoader(sheet)           
    picget = image_loader.get('k2')
    picget.show

This is the error I'm getting:

raise ValueError("Cell {} doesn't contain an image".format(cell))
ValueError: Cell k2 doesn't contain an image