I Can’t Upgrade Walls in Clash of Clans After the Latest Update and Need Urgent Help

I am extremely frustrated with Clash of Clans after the latest update. I have a Town Hall level 17 base and currently have 75 walls that still need upgrading. However, when I try to upgrade them, the game gives me an error saying, "Building already at maximum level," which is simply not true.

This issue started happening right after the most recent update. Despite contacting support multiple times, I have received no proper solution or assistance. It’s incredibly discouraging to invest so much time into the game and then face a problem that blocks progress without any help from the developers.

I urgently request that Clash of Clans Support fix this wall upgrading problem immediately. Players deserve to enjoy the game without being stuck due to update errors. Please solve this issue now and allow me to continue upgrading my base as intended!