Python/Telethon on SQLite database operational error: unable to open database file

I have a python/telethon Telegram bot project consisting of a single python file, an SQLite databse, and a config file. The bot runs fine on my local system in a virtual environment (all three files are in the same directory) but when I attempt to run the python file on ubuntu server, I'm running into the following error.

Project files are in /usr/local/bin/project/:

Traceback (most recent call last):  File "/usr/local/bin/project/script.py", line 19, in <module>    client = TelegramClient(session_name, API_ID, API_HASH).start(bot_token=BOT_TOKEN)             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  File "/usr/local/lib/python3.11/dist-packages/telethon/client/telegrambaseclient.py", line 289, in __init__    session = SQLiteSession(session)              ^^^^^^^^^^^^^^^^^^^^^^  File "/usr/local/lib/python3.11/dist-packages/telethon/sessions/sqlite.py", line 47, in __init__    c = self._cursor()        ^^^^^^^^^^^^^^  File "/usr/local/lib/python3.11/dist-packages/telethon/sessions/sqlite.py", line 242, in _cursor    self._conn = sqlite3.connect(self.filename,                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^sqlite3.OperationalError: unable to open database file

Below are the contents of script.py:

import configparserimport refrom telethon import TelegramClient, Button, eventsimport sqlite3from datetime import datetimeimport tracebackprint("Initializing configurations...")config = configparser.ConfigParser()config.read('config.ini', encoding='utf-8')API_ID = config.get('default','api_id') API_HASH = config.get('default','api_hash')BOT_TOKEN = config.get('default','bot_token')session_name = "sessions/Bot"# Start the bot sessionclient = TelegramClient(session_name, API_ID, API_HASH).start(bot_token=BOT_TOKEN)@client.on(events.NewMessage(pattern="(?i)/start"))async def start(event):    sender = await event.get_sender()    SENDER = str(sender.id)    await event.reply('Hello!.')##### MAINif __name__ == '__main__':    try:        print("Initializing Database...")        # Connect to local database        db_name = 'database.db'        conn = sqlite3.connect(db_name, check_same_thread=False)        # Create the cursor        crsr = conn.cursor()         print("Connected to the database")        # Command that creates the "customers" table         sql_command = """CREATE TABLE IF NOT EXISTS customers (             id INTEGER PRIMARY KEY AUTOINCREMENT,             lname VARCHAR(200),            fname VARCHAR(200),             note VARCHAR(200));"""        crsr.execute(sql_command)        print("All tables are ready")        print("Bot Started")        client.run_until_disconnected()    except Exception as error:        print('Cause: {}'.format(error))

These are the contents of config.ini:

; DO NOT MODIFY THE LINE BELOW!!! ([default])[default]; EDITABLE FIELDS:api_id = 000000api_hash = 000000000000000000bot_token = 00000000000000000000000000

I checked permissions on all three files, and am getting the following:

-rw-r--rw- 1 root root 10601 Mar  4 00:52 script.py-rw-rw-rw- 1 root root 716800 Mar  4 00:52 database.db-rw-r--rw- 1 root root 195 Mar  4 00:52 config.ini