Looks like after the update (v1.0.12), I am no longer receiving aim bot notifications in discord (But they still are being logged in game and via the arkan file).

I receive no recoil violations just fine after the update so I know the webook is working fine with the plugin.

Hopefully this will help assist. This is the log output of when a aim bot is detected but not getting sent out via discord webhook (again no recoil violations works fine):

[Arkan] AIMBOT probable violation
Attacker: Friendly
AIMBOT violation #3
Weapon: crossbow
Ammo: arrow.wooden
Distance: 39.45221
Target: Heartless
HitPart: head
Date/Time: 11/05/2019 01:01:00

Attachments count = 0
Ricochetes count = 1
isEqualFiredProjectileData = True
isPlayerPositionToProjectileStartPositionDistanceViolation = False
-
____Trajectory #1 check data____
isHitPointNearProjectileTrajectoryLastSegmentEndPoint = True
isHitPointOnProjectileTrajectory = True
isProjectileStartPointAtEndReverseProjectileTrajectory = True
isHitPointNearProjectilePlane = True
isLastSegmentOnProjectileTrajectoryPlane = True
____Trajectory #1 data log end____
-
____Trajectory #2 check data____
isHitPointNearProjectileTrajectoryLastSegmentEndPoint = True
isHitPointOnProjectileTrajectory = True
isProjectileStartPointAtEndReverseProjectileTrajectory = True
isHitPointNearProjectilePlane = False
     AIMBOT Violation: HitPoint is not near the plane ProjectilePlane at a distance 0.447876
isLastSegmentOnProjectileTrajectoryPlane = True
____Trajectory #2 data log end____
____Violation data log end____
-
Failed to call hook 'OnEntityTakeDamage' on plugin 'Arkan v1.0.12' (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 <a8ed250850854b439cedc18931a314fe>:0 
  at System.String.FormatHelper (System.IFormatProvider provider, System.String format, System.ParamsArray args) [0x00023] in <a8ed250850854b439cedc18931a314fe>:0 
  at System.String.Format (System.String format, System.Object[] args) [0x00020] in <a8ed250850854b439cedc18931a314fe>:0 
  at Oxide.Plugins.Arkan.Lang (System.String key, System.String id, System.Object[] args) [0x0000e] in <ea48955730a34eb5b7ee6c417e5c1ce0>:0 
  at Oxide.Plugins.Arkan.OnEntityTakeDamage (BasePlayer entity, HitInfo info) [0x020d3] in <ea48955730a34eb5b7ee6c417e5c1ce0>:0 
  at Oxide.Plugins.Arkan.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x005ae] in <ea48955730a34eb5b7ee6c417e5c1ce0>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0 

Hey. Sorry for late answer. I was on vacation. Please send a log file with this detection to the email [email protected]. I will check what causes the error (FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.)

Merged post

I assume that you did not delete the old language file /oxide/lang/en/Arkan.json. Most likely an error due to different values of the variable "LogText10"
old:
["LogText10"] = "Violation probability - {0}%",
new:
["LogText10"] = "Violation data log",
You need to delete language files /oxide/lang/en/Arkan.json and /oxide/lang/ru/Arkan.json. Then execute o.reaload Arkan.

I can confirm after deleating the lang file and reloading the disocrd alerts are working again. Thanks again!