Exception Thrown: java.lang.ArrayIndexOutOfBoundsException: Index -3 out of bounds for length 8
java.lang.ArrayIndexOutOfBoundsException: Index -3 out of bounds for length 8
	at HashtableMap.containsKey(HashtableMap.java:103)
	at BaseGraph.insertNode(BaseGraph.java:60)
	at Backend.loadGraphData(Backend.java:70)
	at WebApp.createWorkingFrontend(WebApp.java:116)
	at WebApp.handleSingleResponse(WebApp.java:173)
	at WebApp.main(WebApp.java:47)