Error at Email Account

Hi ERPNext,

We are unable to open any of the email account and the following is the error at the Console :

It points to this following function :

Kindly advice how we could rectify this error and get our emails going.
Thank you.

Do you have app mandrill_integration installed?

@KanchanChauhan, Thank you for the prompt response.

Yes, we do!

Do bench update and try again.