Well, it's an SQL command that you need to run. So, go to Tools->Install SQL Patches, paste the following code in the text area:
Code:
TRUNCATE TABLE products_options_values;
INSERT INTO products_options_values (products_options_values_id, language_id, products_options_values_name) VALUES (0, 1, 'TEXT');
and then click the "send" button. That's all.

Just make sure you backup your database first!