If your Flower Pot doesn't start, please check your ralphschmidt-cyberstorm-ppc-4471.rom file in FlowerPot/ROMs folder first. Isn't it zero size?

If so, you have to start your Amiga Forever and run its AmigaOS4 entry first. It will create a real ROM file which is not zero size anymore.

After THEN copy the ROM file from your Amiga Forever to FlowerPot.

I have the raphschmidt-cyberstorm-ppc-4471.rom file already, but in case mine is not actually the proper file, since I renamed it. I tried to take the file from amiga forever, but that is 0byte size. so what do you mean by 'you have to start your Amiga Forever and run its AmigaOS4 entry first'? if I look at the opening window in amiga forever i just see a list of possible emulations but I can't find the AmigaOS4 entry. My amiga forever is version 7.2.10.0

Thank you for your question. The name of the entry might be "Amiga 4000 PPC" according to this article https://www.amigaforever.com/kb/16-127