I’m having exactly the same problem after upgrading to 0.9.2.10 too. I have tried completely removing the plugin and reinstalling but still get the error: “Minify Auto encountered an error. The filename length value is most likely too high for your host. It is currently 150. The plugin is trying to solve the issue for you: (solving …)”. The previous version worked brilliantly but now NOTHING is minified, even if I set it to ‘Manual’ mode and configure the options that way.
I literally have no option but to use another, inferior minify plugin because this just won’t work anymore.
The server is running CentOS and Apache and I have tried both Opcode APC and regular disk caching to no avail.