Error popped up.

Unloaded plugin GestureToActivate v1.0.3 by mr01sam
Loaded plugin GestureToActivate v1.0.3 by mr01sam [44ms]
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Clap_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\clap.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Wave_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\wave.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Victory_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\victory.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.ThumbsUp_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\thumbsup.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.ThumbsDown_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\thumbsdown.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Shrug_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\shrug.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Point_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\point.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Ok_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\ok.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Hurry_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\hurry.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Friendly_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\surrender.png
[Timed Execute] ran CMD: we lightrain
Unloaded plugin GestureToActivate v1.0.3 by mr01sam
Loaded plugin GestureToActivate v1.0.3 by mr01sam [45ms]
 GestureToActivate v1.0.3 by mr01sam hook 'OnServerInitialized' took longer than 100ms [191ms]
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Clap_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\clap.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Wave_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\wave.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Victory_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\victory.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.ThumbsUp_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\thumbsup.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.ThumbsDown_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\thumbsdown.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Shrug_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\shrug.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Point_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\point.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Ok_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\ok.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Hurry_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\hurry.png
Image failed to download! Error: Cannot connect to destination host - Image Name: gta2.Gesture.Friendly_0 - Image URL: /home/container/carbon/data\GestureToActivate\images\surrender.png

{
  "Activation Delay (seconds)": 2.0,
  "Activation Range": 500.0,
  "Gesture Images": {
    "Gesture.Clap": "GestureToActivate\\images\\clap.png",
    "Gesture.Friendly": "GestureToActivate\\images\\surrender.png",
    "Gesture.Hurry": "GestureToActivate\\images\\hurry.png",
    "Gesture.Ok": "GestureToActivate\\images\\ok.png",
    "Gesture.Point": "GestureToActivate\\images\\point.png",
    "Gesture.Shrug": "GestureToActivate\\images\\shrug.png",
    "Gesture.ThumbsDown": "GestureToActivate\\images\\thumbsdown.png",
    "Gesture.ThumbsUp": "GestureToActivate\\images\\thumbsup.png",
    "Gesture.Victory": "GestureToActivate\\images\\victory.png",
    "Gesture.Wave": "GestureToActivate\\images\\wave.png"
  },
  "Message Avatar ID": "76561199442694119",
  "Show Messages": true,
  "UI Open SFX": "assets/prefabs/locks/keypad/effects/lock.code.unlock.prefab",
  "UI Updated SFX": "assets/prefabs/locks/keypad/effects/lock.code.updated.prefab"
}

Huh, interesting. 

Could you try reversing the slashes in the image path in the config? As well as make them a single / instead of a \\?