Labkit import labeling/bitmap

I’m trying to import a bitmap tiff labelling into lab kit but every time I try to import I get the following error:

java.lang.NullPointerException
at io.scif.services.DefaultInitializeService.initializeReader(DefaultInitializeService.java:87)
at io.scif.img.ImgOpener.createReader(ImgOpener.java:483)
at io.scif.img.ImgOpener.openImgs(ImgOpener.java:242)
at io.scif.services.DefaultDatasetIOService.open(DefaultDatasetIOService.java:152)
at io.scif.services.DefaultDatasetIOService.open(DefaultDatasetIOService.java:133)
at io.scif.services.DefaultDatasetIOService.open(DefaultDatasetIOService.java:138)
at net.imglib2.labkit.actions.BitmapImportExportAction.importLabel(BitmapImportExportAction.java:75)
at net.imglib2.labkit.actions.AbstractFileIoAction.lambda$runAction$1(AbstractFileIoAction.java:98)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

I have tried to update the site and it still doesn’t work. Can someone help me? Thank you