(00:35:55) | Failed to call hook 'OnPlayerInput' on plugin 'BloodBags v1.6.1' (FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.)
at System.Text.StringBuilder.AppendFormatHelper (System.IFormatProvider provider, System.String format, System.ParamsArray args) [0x000ff] in <437ba245d8404784b9fbab9b439ac908>:0
at System.String.FormatHelper (System.IFormatProvider provider, System.String format, System.ParamsArray args) [0x00023] in <437ba245d8404784b9fbab9b439ac908>:0
at System.String.Format (System.String format, System.Object arg0) [0x00008] in <437ba245d8404784b9fbab9b439ac908>:0
at Oxide.Plugins.BloodBags.DealWithBags (BasePlayer p) [0x00114] in <2f6f1d5aeb4842fe8613d4df393ddcec>:0
at Oxide.Plugins.BloodBags.OnPlayerInput (BasePlayer player, InputState input) [0x00011] in <2f6f1d5aeb4842fe8613d4df393ddcec>:0
at Oxide.Plugins.BloodBags.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0005b] in <2f6f1d5aeb4842fe8613d4df393ddcec>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <1e2d7ad0801a4037ab6a24578c814b54>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <1fe782f4b27a43ae85d29ebb2d56c007>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <1fe782f4b27a43ae85d29ebb2d56c007>:0

Could ya post your config?

{
  "Blood bags": {
    "Blood bags remove bleeding": false,
    "Can players use the craft command?": true,
    "How many seconds until another bag can be used": 10.0,
    "Instant health to recover": 50.0,
    "Pending health to recover": 50.0
  },
  "Chat prefix": {
    "The chat prefix used for the plugin": "Blood Bags"
  },
  "Crafting": {
    "Amount of item 1 to use": 5,
    "Amount of item 2 to use": 1,
    "First item used for crafting (Item IDs, default value is -2072273936 for bandages)": -2072273936,
    "Second item used for crafting (Item IDs, default value is 1079279582 for med syringes": 1079279582,
    "Time to craft": 30.0
  }
}