Problem getting data from .pst file using win32com.client

I am trying to extract some data from a .pst file using win32com.client as described in the answer of Read PST files from win32 or pypff. However, when I run the code I receive the following error:

File '<'COMObject GetNamespace'>', line 2, in AddStore pywintypes.com_error: (-2147352567, 'Exception occurred.', (4096, 'Microsoft Outlook', 'The Outlook data file (.pst) failed to load for this session.', None, 0, -2147467259), None)

The code I used is:

import win32com.client

def find_pst_folder(OutlookObj, pst_filepath) :
    for Store in OutlookObj.Stores :
        if Store.IsDataFileStore and Store.FilePath == pst_filepath :
            return Store.GetRootFolder()
    return None

def enumerate_folders(FolderObj) :
    for ChildFolder in FolderObj.Folders :
        enumerate_folders(ChildFolder)
    iterate_messages(FolderObj)

def iterate_messages(FolderObj) :
    for item in FolderObj.Items :
        print("***************************************")
        print(item.SenderName)
        print(item.SenderEmailAddress)
        print(item.SentOn)
        print(item.To)
        print(item.CC)
        print(item.BCC)
        print(item.Subject)
        count_attachments = item.Attachments.Count
        if count_attachments > 0 :
            for att in range(count_attachments) :
                print(item.Attachments.Item(att + 1).Filename)

Outlook = win32com.client.Dispatch("Outlook.Application").GetNamespace("MAPI")

pst = r"C:\Users\djmey\Desktop\PSTChecker\MyINBOX.pst"
Outlook.AddStore(pst)
PSTFolderObj = find_pst_folder(Outlook,pst)
try :
    enumerate_folders(PSTFolderObj)
except Exception as exc :
    print(exc)
finally :
    Outlook.RemoveStore(PSTFolderObj)

If anyone has any clue what is causing this or has a good idea of where I should be looking, please let me know.