Could you please solve the SQL injection challenge?

SQL Injection Challenge One To complete this challenge, you must exploit SQL injection flaw in the following form to find the result key. Challenge Hint This is the query you are injecting code into! Take special note of characters that start and stop the context of a String... SELECT * FROM customers WHERE customerld ="SELECT * FROM customers WHERE customerld ="1' OR 1 = 1; -- Please enter the Customer Id of the user that you want to look up SELECT * FROM customers WHERE customerld ="1OR 1 = Get user An error was detected! com.mysql.jdbc.exceptions.jdbc4. MySQL SyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1' OR 1 = 1;-";" at line 1