Because you want to make panoramas with pandora, I've installed pandora on my PC (windows 10). I see you have an iOS,OSX/macOS system but it doesn’t matter in this discussion. I get no errors after installing pandora (gimp 2.10.18), but I've tried pandora without satisfying results. If you want a good free panorama maker, try hugin (works on OSX): http://hugin.sourceforge.net.
This program is much better because it correct the deformation on photos (lens / viewpoint).
For making good panorama photos, the camera must be mounted on a tripod with the focal point of the lens in the pivoting point of the head on the tripod. In this case it is maybe possible to use pandora in gimp with satisfying results. But most people make the different photos by hand so one gets some deformations that are tricky to correct with pandora. Hugin is also free and does it better. I've read it also just a while ago in this forum : https://www.gimp-forum.net/Thread-Stitch...rama-photo.
This program is much better because it correct the deformation on photos (lens / viewpoint).
For making good panorama photos, the camera must be mounted on a tripod with the focal point of the lens in the pivoting point of the head on the tripod. In this case it is maybe possible to use pandora in gimp with satisfying results. But most people make the different photos by hand so one gets some deformations that are tricky to correct with pandora. Hugin is also free and does it better. I've read it also just a while ago in this forum : https://www.gimp-forum.net/Thread-Stitch...rama-photo.