My Server isn't Starting.

31.10 20:54:40 [Multicraft] Server stopped
31.10 20:54:40 [Multicraft] Looks like a crash, check the server console. Return value: 1
31.10 20:54:40 [Multicraft] Server shut down
31.10 20:54:40 [Server] INFO # /hs_err_pid19483.log
31.10 20:54:40 [Server] INFO # An error report file with more information is saved as:
31.10 20:54:40 [Server] INFO # Native memory allocation (mmap) failed to map 2863661056 bytes for committing reserved memory.
31.10 20:54:40 [Server] INFO # There is insufficient memory for the Java Runtime Environment to continue.
31.10 20:54:40 [Server] INFO #
31.10 20:54:40 [Server] INFO Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000006c0000000, 2863661056, 0) failed; error='Cannot allocate memory' (errno=12)
31.10 20:54:40 [Multicraft] Loaded config for "Default Minecraft Server"
31.10 20:54:40 [Multicraft] Starting server!