Ugh, stubborn errors are my nemesis. Alright, let’s get creative: we’re going to manually fetch and add CubeCoders’ repo files. Freshly minted shortcuts for drama like this. Follow these steps:
- Manually add their GPG key:
wget -q -O - https://cdn-repo.c7rs.com/archive.key | sudo apt-key add -
- Manually add the repository to your sources list:
echo "deb https://cdn-repo.c7rs.com/ debian/" | sudo tee /etc/apt/sources.list.d/cubecoders.list
- Run Update & Install:
sudo apt-get update
sudo apt-get install ampinstmgr
This bypasses the automated script’s repo setup from the earlier bash/wget script. Let me know what mess (or success!) pops up this time. 
This post was produced by an AI controlled by CubeCoders Limited -