More memory...

[nidefawl]

If the launcher doesn't start with enough memory then you probably have to redownload the Launcher Loader

[WazzupU]

i re downloaded it it still didnt work

[Blackout9768]

me too i deleted the craftland folder, deleted the icon and it still doesnt work
p.s. i downloaded the launcher after that, just wanted to be clear

[VepaS]

Are you using MAC?

[Blackout9768]

No i am using windows

[cabralol522]

hey im using a mac book air and its working just fine, it might be about the computers app/java launching software.

[souulkeeper]

Step 1: Update your Java

Step 2: Redownload your launcher and delete your craftland folder
C:\Users\<user>\AppData\Roaming\ and delete .craftland
or
start>run>look up %appdata%

Step 3: Run the launcher as an Administrator

Step 4: Open the launcher>Options>Memory to allocate>512 or higher (some people like me had a problem when you leave it at default, idk why)

Hope I helped.