DispenserExploit Crasher fix 1.2.1

Fix dispenser obsidian exploit

  1. Spigot didn't upload the file (0byte)

    Emibergo02
    idk why
  2. moved checks on obsidian

    Emibergo02
    i confused the target of the exploit
  3. highest event priority

    Emibergo02
    changed from monitor to highest priority