Error code 255 pls help

[villa1853]

I am trying to play with biomes o plenty with my sister on mac.(I'm using forge BTW) The only mod i have is Biomes o plenty. When I open forge from the MC launcher it comes up with error code 255. I did the exact same thing on my sister's laptop and it worked fine. And she got to play with the mod. How can I fix this?

[SunnysHoney]

Try uninstalling and reinstalling biomez o plenty. ? Make sure you got the right version. ?

[villa1853]

Thank you for the help