i need help witha modlauncher problem

[Leonkun]

i have the program modlauncher for launching mods and the one i am using works for others but not me how do i fix this i been trying everything i could i even went and got  a updated modlauncherv5 and it worked once and now won't let me back in

 

[meganoth]

[I moved this thread to an appropriate section]

 

It may be better to ask the author of the mod launcher directly. But in any case, without a much better description what is happening you won't have much luck getting a meaningful answer.