I think there might be an issue with this website; it doesn't seem to be their official site. It's recommended to use the official code and demo: https://vectorspacelab.github.io/OmniGen/
https://github.com/VectorSpaceLab/OmniGen
The author updated their code a couple of days ago, and it runs smoothly on my end, producing results in about one minute. https://github.com/VectorSpaceLab/OmniGen
I think there might be an issue with this website; it doesn't seem to be their official site. It's recommended to use the official code and demo: https://vectorspacelab.github.io/OmniGen/
https://github.com/VectorSpaceLab/OmniGen
The author updated their code a couple of days ago, and it runs smoothly on my end, producing results in about one minute. https://github.com/VectorSpaceLab/OmniGen