[BUG] Can't send notifications - Cannot get the value of a token type 'Number' as a string.

[swiftbird07]

I’m experiencing an issue with sending notifications. While “SessionStart” notifications work as expected, other notification types fail to send. The problem occurs when Jellyfin attempts to send a notification to N8N using a generic destination.

Environment:

•	Jellyfin Version: 10.8.13
•	Deployment: Docker container
•	Plugin: Installed via Plugin Repo
•	Notification Destination: Generic (to N8N)

2024-06-10 22:18:51.238 +00:00] [INF] [24] Emby.Server.Implementations.ScheduledTasks.TaskManager: "IntervalTrigger" fired for task: "Webhook Item Added Notifier"
[2024-06-10 22:18:51.238 +00:00] [INF] [24] Emby.Server.Implementations.ScheduledTasks.TaskManager: Queuing task "ItemAddedScheduledTask"
[2024-06-10 22:18:51.238 +00:00] [INF] [48] Emby.Server.Implementations.ScheduledTasks.TaskManager: Executing "Webhook Item Added Notifier"
[2024-06-10 22:18:51.238 +00:00] [INF] [48] Emby.Server.Implementations.ScheduledTasks.TaskManager: "Webhook Item Added Notifier" Completed after 0 minute(s) and 0 seconds
[2024-06-10 22:18:51.239 +00:00] [INF] [48] Emby.Server.Implementations.ScheduledTasks.TaskManager: ExecuteQueuedTasks
[2024-06-10 22:18:51.468 +00:00] [ERR] [11] Jellyfin.Plugin.Webhook.WebhookSender: Unable to send notification
System.Text.Json.JsonException: The JSON value could not be converted to System.Collections.Generic.Dictionary`2[System.String,System.String]. Path: $.RunTimeTicks | LineNumber: 0 | BytePositionInLine: 945.
 ---> System.InvalidOperationException: Cannot get the value of a token type 'Number' as a string.
   at System.Text.Json.Utf8JsonReader.GetString()
   at System.Text.Json.Serialization.JsonDictionaryConverter`3.OnTryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, TDictionary& value)
   at System.Text.Json.Serialization.JsonConverter`1.TryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value)
   at System.Text.Json.Serialization.JsonConverter`1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   --- End of inner exception stack trace ---
   at System.Text.Json.ThrowHelper.ReThrowWithPath(ReadStack& state, Utf8JsonReader& reader, Exception ex)
   at System.Text.Json.Serialization.JsonConverter`1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan`1 utf8Json, JsonTypeInfo jsonTypeInfo, Nullable`1 actualByteCount)
   at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan`1 json, JsonTypeInfo jsonTypeInfo)
   at System.Text.Json.JsonSerializer.Deserialize[TValue](String json, JsonSerializerOptions options)
   at Jellyfin.Plugin.Webhook.Destinations.GenericForm.GenericFormClient.SendAsync(GenericFormOption option, Dictionary`2 data)
   at Jellyfin.Plugin.Webhook.WebhookSender.SendNotification[T](IWebhookClient`1 webhookClient, T option, Dictionary`2 itemData, Type itemType)

Any help is appreciated.