Period closing for old Fiscal done, still warning shows up

I have 2 fiscal years 2017 (jan-dec) and 2018. Though i creaed a period closing voucher for 2017. In 2018 Balance report , at the bottom i see a warning that previous year closing not yet done. Why is this.

  1. Do i need to add opening balances in my new Fiscal year to remove this warning.
  2. Or do i have click on disable button in the 2017 fiscal year docType

Pls find screen shots

Period closing voucher

2018 Balance sheet report, which has warning at the bottom

Installed Apps Version

ERPNext: v9.1.4 (master)

Frappe Framework: v9.1.6 (master)

Pls let me know.

Too old version. Please upgrade to the latest version. This is already fixed.

Thanks @umair for responding.

Sorry for providing the wrong versions.
Actually i created a trial account and tried the use case. Below is the version in the trial account.

Installed Apps
ERPNext: v10.1.18 (master)
Frappe Framework: v10.1.16 (master)