Update TroubleShootingSteps.md with new error details

Author: NirajC-Microsoft

docs/TroubleShootingSteps.md

@@ -581,5 +581,12 @@ Once your request is approved, redeploy your resource.
 
 </details>
 
+<details>
+<summary><b>ContainerAppOperationError</b><summary>
+
+- The error is likely due to an improperly built container image. For resolution steps, refer to the [Azure Container Registry (ACR) – Build & Push Guide](./ACRBuildAndPushGuide.md).
+
+</details>
+
 💡 Note: If you encounter any other issues, you can refer to the [Common Deployment Errors](https://learn.microsoft.com/en-us/azure/azure-resource-manager/troubleshooting/common-deployment-errors) documentation.
 If the problem persists, you can also raise an bug in our [MACAE Github Issues](https://github.com/microsoft/Multi-Agent-Custom-Automation-Engine-Solution-Accelerator/issues) for further support.