Hi,
Welcome to the Quelea community! My guess is that it won’t work due to Java limitations on the ARM platform that the Raspberry Pi uses.
If you want to use Quelea on the Raspberry Pi, you might want to take a look at this post: ARM operation, where I share my findings on what had to be done to run Quelea on the Raspberry Pi 3 Model B. Java for ARM doesn’t include JavaFX which is needed to run Quelea, so you would have to manually add the missing files to your Java installation.
Do let us know if you manage to get it running, it would be interesting to know!
Thanks,
Arvid