gèng wěn de shuō fǎ shì wǒ xiān chá yī xià biàn gèng jì lù què rèn shì nǎ yī bù chū le wèn tí

更稳的说法是：“我先查一下变更记录，确认是哪一步出了问题。

A more stable way to say it is: "Let me first check the change log to confirm which step went wrong."