How to upload CSV data to Oracle database, when your Oracle image runs in docker when mistakes Oracle are: 29913, 29400?

Question

I have issue with uploading files to my database through an external table:

I can create, read, drop directories, tables by anton_gridushko user, but have no idea why I have troubles when I try to load data to created table.

I used this tutorial but did everything in an SQL Developer worksheet.

Could you give me advice, please, what to do?

My commands sequence is

1.create directory lang_external as 'C:\loader';
2.SQL> grant read,write on directory lang_external to anton_gridushko;
3.CREATE TABLE languages(
        language_id INT,
        language_name VARCHAR2(30)
    )
    ORGANIZATION EXTERNAL(
        TYPE oracle_loader
        DEFAULT DIRECTORY lang_external
        ACCESS PARAMETERS 
        (FIELDS TERMINATED BY ',')
        LOCATION ('languages.csv')
    );

4. run into issue here:
SELECT 
            language_id, 
            language_name 
        FROM 
            languages
        ORDER BY 
            language_name;