During the installation process, the module build completes, but AutoProtect is malfunctioning.
It fails to load with the following message:
Using default major=254 (bad devmajor in /proc/symap)
cat: /dev/symap: No such device or address
[TIMESTAMP] symap: /dev/symap has not been created correctly
This occurs when all of the major device numbers between 234 and 254 are in use by other devices.
Uninstall a non-essential driver and then recompile the kernel modules by running the .../src/ap-kernelmodule-[VERSION]/build.sh script.
To find out which drivers are using the dev nodes in question, you can use the following command and review the list of Character devices:
sudo cat /proc/devices
Once AutoProtect modules are loaded and it is running, you may reinstall the driver that you removed.