Error occured while executing the command / by zero need help pls

[Ernesto Cubo]

i need help i changed the nam of the world and now idk why when i try the command /c or /c info cityname it doesnt work it says error occured while executing the command / by zero

https://gyazo.com/6058eb11d84efe209f247b48ac8a1897

https://gyazo.com/c5d07f2a3743d481926ca2465880620b

other info of the plugins: City-0.1.39 spongeforge-1.11.2-2315-6.1.0-BETA-2377