[docs] Toast visualization 500 error

[JPrisk]

🐛 Bug report

Hey folks, just wanted to let you know that there is a 500 error on the toast -> visualize logic page

💥 Steps to reproduce

Visit the following link

💻 Link to reproduction

https://state-machine-viz.vercel.app/toast

[segunadebayo]

Thanks for the heads up @JPrisk

@anubra266 can you help debug this?