Spigot Automatic Restart Failure

2013-02-10 22:59:19 [SEVERE] java.io.IOException: Cannot run program "run.sh": error=2, No such file or directory
2013-02-10 22:59:19 [SEVERE]    at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
2013-02-10 22:59:19 [SEVERE]    at java.lang.Runtime.exec(Runtime.java:615)
2013-02-10 22:59:19 [SEVERE]    at java.lang.Runtime.exec(Runtime.java:448)
2013-02-10 22:59:19 [SEVERE]    at java.lang.Runtime.exec(Runtime.java:345)
2013-02-10 22:59:19 [SEVERE]    at org.bukkit.craftbukkit.v1_4_R1.CraftServer.restart(CraftServer.java:1396)
2013-02-10 22:59:19 [SEVERE]    at org.bukkit.craftbukkit.v1_4_R1.util.WatchdogThread.run(WatchdogThread.java:80)
2013-02-10 22:59:19 [SEVERE] Caused by: java.io.IOException: error=2, No such file or directory
2013-02-10 22:59:19 [SEVERE]    at java.lang.UNIXProcess.forkAndExec(Native Method)
2013-02-10 22:59:19 [SEVERE]    at java.lang.UNIXProcess.<init>(UNIXProcess.java:135)
2013-02-10 22:59:19 [SEVERE]    at java.lang.ProcessImpl.start(ProcessImpl.java:130)
2013-02-10 22:59:19 [SEVERE]    at java.lang.ProcessBuilder.start(ProcessBuilder.java:1021)
2013-02-10 22:59:19 [SEVERE]    ... 5 more