error when changing data

[ray85821234]

I change the number of unit and demand like the picture below
but this error comes out
how can I correct this

[grubdragon]

Hi! I will try looking into this! Thank you for the report :)
Edit: I should be honest though, this was done an year back and I have frankly little remaining idea of the project. Do bear with me on this and if you do solve it, PRs are more than welcome!

[grubdragon]

Hi @ray85821234 you may have moved on from this project, but alas, since I only have had time to do some surface-level investigation now, I think there is a problem with the handling of unit data. There is an error while formulating the constraints, which is essentially an out-of-bounds error. I may have hardcoded some kind of unit information. I'll try to investigate further.