Figured out the issue. I had not uninstalled the old sftp plugin. Once I uninstalled the plugin and the old version of Ghost Commander, I was able to install the APK from Source Forge.
Some additional information: Phone: OnePlus 7 Pro Android 11 Oxygen OS 11.0.1.2.31CB
APK does not install
Exporting a single page or subset of pages produces file of nearly same size as original file