General help and assistance with jamovi. Bug reports can be made at our issues page: https://github.com/jamovi/jamovi/issues . (If you're unsure feel free to discuss it here)
After a significant result, some people will go on to run a discriminant functions analysis. As I recall, you can do a linear discriminant analysis as part of the Snowcluster module? (I'm a little hazy on this as I'm writing this on a phone away from my PC).
Others might instead look at the multiple univariate ANOVAs that are spat out as part of the MANOVA analysis...