string.Split('/') gets Incorect format error on run?

I have used this a bunch of times and am using it the same way in other places but I keep getting this error when I try to use it here

System.FormatException: Input string was not in the correct format
  at System.Int32.Parse (System.String s) [0x00010] in /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/Int32.cs:629

This is the code part

string loadedData = UnicodeEncoding.Unicode.GetString(SaveWorld.ReadFile(SaveWorld.saveFolder + "/worlds/" + SaveWorld.saveworld.worldName + "/" + playerName + ".txt")); 
			string copy = loadedData.ToString(); 
			string[] splitData = copy.Split ("/"[0]); 
			List<slotInvDat> loadedSlots = new List<slotInvDat> (); 


This is what the loadedData string containes


Try string.split(@“/”)