LLC dissolved in 2020 but received 1099-DIV for 2021

I dissolved my LLC partnership in August of 2020 and received confirmation from State.  All tax were filed properly in 2021.  I closed my business checking account but the bank forgot to change my investment account to my SSN.  So, I received a 1099-DIV under my LLC for year 2021 but my business was already terminated in 2020.

Question:

  Should I file the 1099-DIV under my personal tax 1040 as pass thru?  Or should I file 1065 for LLC partnership and generate schedule K1 for myself and wife?  My concern is I don't know if I can file 1065 when my LLC was dissolved over a year ago.