System.NullReferenceException: Object reference not set to an instance of an object.

Sentry Issue: [UNITY-EXPLORER-PWK](https://decentraland.sentry.io/issues/7703252679/)

```
System.NullReferenceException: Object reference not set to an instance of an object.
File "C:/workspace/workspace/p/Explorer/Assets/DCL/SmartWearables/SmartWearableCache.cs", line 152, in CacheWearableInternalAsync
File "C:/workspace/workspace/p/Explorer/Assets/DCL/WebRequests/ArtificialDelayWebRequestController.cs", line 35, in MoveNext
File "C:/workspace/workspace/p/Explorer/Assets/DCL/WebRequests/DebugMetricsWebRequestController.cs", line 37, in MoveNext
File "C:/workspace/workspace/p/Explorer/Assets/DCL/WebRequests/WebRequestController.cs", line 140, in MoveNext
File "C:/workspace/workspace/p/Explorer/Assets/DCL/WebRequests/GenericDownloadHandlerUtils.cs", line 268, in ExecuteAsync
...
(144 additional frame(s) were not displayed)
```
This issue was automatically created by Sentry via [Explorer Alpha Github Issue Creation](https://sentry.io/organizations/decentraland/monitors/alerts/3130340/)

Start by inspecting Assets/DCL/SmartWearables/SmartWearableCache.cs at line 152 and the surrounding CacheWearableInternalAsync flow. Trace the web-request callers shown in the stack trace and use the linked Sentry issue to understand the failing conditions. Done means the reported NullReferenceException no longer occurs in this path.

Written by the indexing model from the issue text.