Account Type Entered Incorrectly as "Asset", where it needs to be Expense

Hello - 

In one of our tenants, we had an account incorrectly added with an Account Type of “Asset”, and it wasnt caught until transactions had already been processed. Now when attempting to change the account type to Expense, I get an error message stating that I cannot change the account type because transactions already exist. Is there any way around this so that we can change the account to Expense and it populates on the Trial Balance and reporting correctly?

Thanks!