Video file too Small while trying to upload a reel on facebook API

i am trying to upload a reel (MP4, 16 seconds, and 9 MB) using facebook graph API, but i get the following error:

Failed to upload reel: {'error': {'message': 'The video file you tried to upload is too small. Please try again with a larger file.', 'type': 'OAuthException', 'code': 382, 'error_subcode': 1363022, 'is_transient': False, 'error_user_title': 'Video Too Small', 'error_user_msg': 'The video you tried to upload is too small. The minimum size for a video is 1 KB. Please try again with a larger file.', 'fbtrace_id': 'A0WVVSGWnXEfffdwrjFUENsJVC'}}

The code:

import requests from datetime import datetime import subprocess import os def human_readable_to_timestamp(date_string):     try:         # Convert the human-readable date string to a datetime object         dt_object = datetime.strptime(date_string, '%Y-%m-%d %H:%M:%S')         # Convert the datetime object to UNIX timestamp         timestamp = int(dt_object.timestamp())         return timestamp     except ValueError:         print("Invalid date format. Please provide the date in the format: YYYY-MM-DD HH:MM:SS")         return None def extract_frame(video_path, time, output_path):     # Use ffmpeg to extract a frame from the video at the specified time     cmd = [         'ffmpeg', '-y',         '-i', video_path,         '-ss', str(time),         '-vframes', '1',         '-q:v', '2',  # Set quality (1-31, 1 being highest)         output_path     ]     subprocess.run(cmd, check=True) def upload_reel_with_thumbnail(video_path, thumbnail_path, access_token, file_size, target_file_size, scheduled_publish_time=None):          # Endpoint for uploading videos     url = 'https://graph.facebook.com/v15.0/me/videos'     if file_size < target_file_size:         # Pad the file with zeros to reach the target file size         with open(video_path, 'ab') as video_file:             video_file.write(b'\0' * (target_file_size - file_size))             file_size = target_file_size  # Update the file size after padding     print (file_size)     # Video data     video_data = {         'access_token': access_token,         #'file_url': video_path,         'description': 'Check out this amazing reel!',         'file_size': file_size,         'published': 'false'         # Additional parameters can be added here as needed     }     # If scheduling time is provided, add it to the request     if scheduled_publish_time:         video_data['scheduled_publish_time'] = human_readable_to_timestamp(scheduled_publish_time)     try:         # Sending POST request to upload the video         files = {'file': video_path}         response = requests.post(url, data=video_data, files=files)         response_json = response.json()         # Check if the upload was successful         if 'id' in response_json:             reel_id = response_json['id']             print("Reel uploaded successfully! Reel ID:", reel_id)             # Upload the thumbnail             upload_thumbnail(reel_id, thumbnail_path, access_token)             # If scheduling time is provided, schedule the reel             if scheduled_publish_time:                 schedule_reel(reel_id, scheduled_publish_time, access_token)         else:             print("Failed to upload reel:", response_json)     except Exception as e:         print("An error occurred:", str(e)) def upload_thumbnail(reel_id, thumbnail_path, access_token):     # Endpoint for uploading thumbnail     url = f'https://graph.facebook.com/v15.0/{reel_id}'          # Thumbnail data     files = {'thumb': open(thumbnail_path, 'rb')}     params = {'access_token': access_token}     try:         # Sending POST request to upload the thumbnail         response = requests.post(url, files=files, params=params)         response_json = response.json()         # Check if the thumbnail upload was successful         if 'success' in response_json and response_json['success']:             print("Thumbnail uploaded successfully!")         else:             print("Failed to upload thumbnail:", response_json)     except Exception as e:         print("An error occurred:", str(e)) def schedule_reel(reel_id, scheduled_publish_time, access_token):     # Endpoint for scheduling the reel     url = f'https://graph.facebook.com/v15.0/{reel_id}'     # Schedule data     data = {         'access_token': access_token,         'published': 'false',         'scheduled_publish_time': scheduled_publish_time     }     try:         # Sending POST request to schedule the reel         response = requests.post(url, data=data)         response_json = response.json()         # Check if scheduling was successful         if 'id' in response_json:             print("Reel scheduled successfully!")         else:             print("Failed to schedule reel:", response_json)     except Exception as e:         print("An error occurred:", str(e)) # Example usage if __name__ == "__main__":     # Path to the video file     video_path = '55.mp4'                  file_size = os.path.getsize(video_path)     target_file_size = 10 * 1024  # 30 KB     print (file_size)     # Path to the thumbnail image     thumbnail_path = 'thumbnails/55.jpg'          extract_frame(video_path, 6, thumbnail_path)     # Facebook Access Token     access_token = 'xxxxx'     # Scheduled publish time (human-readable format)     scheduled_publish_time = '2024-04-10 15:30:00'  # Example: April 10, 2024, 15:30:00 UTC     # Call the function to upload the reel with the extracted thumbnail and schedule it     upload_reel_with_thumbnail(video_path, thumbnail_path, access_token, file_size, target_file_size, scheduled_publish_time)          print ("done") 

Any idea :(?