Error updating to 4.1.2 (Unable to update package cache)

[mentioneddiagonal]

Please follow the below template, it will help us to help you!

Expected Behaviour:

Update to 4.1.2 is failing via sudo pihole -up

Actual Behaviour:

During update it errors with the following:
Error: Unable to update package cache. Please try ""
Unable to complete update, please contact Pi-hole Support

Debug Token:

ofb4v28n0g

[DanSchaper]

@mentioneddiagonal

ofb4v28n0g

You'll need to make sure that sudo apt-get update completes successfully before we can do an update.

[mentioneddiagonal]

Running sudo apt-get update gave an error.
I ran the following commands and then was able to udpate.

sudo rm /var/lib/apt/lists/* -vf 
sudo apt-get update