Default [Q] [I9505] Restored after ROM install fai. gapps not loading, constant rebooting.

recently, i tried to install the cyanogenmod ROM to my Samsung Galaxy S4 using the installer program. the install failed and i was stuck in a boot-loop without my PC being able to recognise it as a device.

Thankfully, i managed to restore the device to a backup i made only an hour prior.

All was going well, until i unlocked the screen and then the message "com.google.process.gapps has stopped" and whenever i closed the pop-up, i would receive the message over and over again until my phone crashed and rebooted.

I'm at a loss at what to do from here...

thanks