I had the same issue. I tried to run the server at the command line and got an error about missing Visual C++ runtimes. I went to Microsoft’s site and grabbed the latest, and now it starts.
I assume you’re running the Windows version of AMP. Some of us are using headless Debian Linux servers with AMP Application Manager to install and manage game instances. While it is possible for us to run the game server locally on our machine or another windows machine but that’s not what we’re aiming for. The goal is to have the headless server itself with AMP to fully handle and run the game instances on home Linux servers.
We can manage things manually with SteamCMD, but that quickly becomes inefficient. AMP (Application Management Panel) is built to streamline this, especially when running multiple servers or clusters. Some of us rocking 20+ servers and clusters. LOL
I got this to start by FTPing the missing 443030 file, that I had got with SteamCMD locally. Then I transferred that over, into the broken AMP instance, and it started. So seems the problem is the the reason for the error is that it wasn’t installing the 443030 file which is the dedicated server file. When AMP tried to install the instance for Conan Exiles Enhanced it wasn’t completing that process. I will now try to see if I can join it.