Got "SyntaxError: not a PNG" file when deploying through python

[theshoaibshafique]

Traceback (most recent call last):

File ~\AppData\Roaming\Python\Python310\site-packages\IPython\core\interactiveshell.py:3526 in run_code
exec(code_obj, self.user_global_ns, self.user_ns)

Cell In[3], line 2
jtm.publish('loc and iloc.ipynb',

File ~\AppData\Roaming\Python\Python310\site-packages\jupyter_to_medium_publish_to_medium.py:449 in publish
p.main()

File ~\AppData\Roaming\Python\Python310\site-packages\jupyter_to_medium_publish_to_medium.py:309 in main
self.md, self.image_data_dict = self.create_markdown()

File ~\AppData\Roaming\Python\Python310\site-packages\jupyter_to_medium_publish_to_medium.py:165 in create_markdown
no_ex_pp.preprocess(self.nb, self.resources)

File ~\AppData\Roaming\Python\Python310\site-packages\nbconvert\preprocessors\base.py:70 in preprocess
nb.cells[index], resources = self.preprocess_cell(cell, resources, index)

File ~\AppData\Roaming\Python\Python310\site-packages\jupyter_to_medium_preprocesors.py:204 in preprocess_cell
output["data"] = {"image/png": converter(html)}

File ~\AppData\Roaming\Python\Python310\site-packages\jupyter_to_medium_screenshot.py:182 in run
img = self.take_screenshot()

File ~\AppData\Roaming\Python\Python310\site-packages\jupyter_to_medium_screenshot.py:132 in take_screenshot
img = mimage.imread(buffer)

File ~\AppData\Roaming\Python\Python310\site-packages\matplotlib\image.py:1525 in imread
PNG images are returned as float arrays (0-1). All other formats are

File ~\AppData\Roaming\Python\Python310\site-packages\PIL\ImageFile.py:117 in init
self._open()

File ~\AppData\Roaming\Python\Python310\site-packages\PIL\PngImagePlugin.py:705 in _open
raise SyntaxError(msg)

File
SyntaxError: not a PNG file