Camunda 8 Helm Error at <.Values.image.tag>: can't evaluate field tag in type interface {}

I am deploying Camunda 8 Helm chart 9.0.1 to kubernetes in our company internal cloud, but got an error of <.Values.image.tag>: can’t evaluate field tag.
Our company internal cloud does not support helm native command, but it use helm template command first to generate Kubernetes yaml first, then execute k8s yaml

+ helm template --name-template=camunda-platform-helm . -f values/dev-a/values.yaml --set app_name=camunda-platform-helm

I have already supplied image.tag field in values.yaml.

Below is the error log

2024-06-11T18:11:13.345Z] Error: template: camunda-platform/templates/operate/tests/test-connection.yaml:6:3: executing "camunda-platform/templates/operate/tests/test-connection.yaml" at <include "operate.labels" .>: error calling include: template: camunda-platform/templates/operate/_helpers.tpl:23:8: executing "operate.labels" at <include "camundaPlatform.labels" .>: error calling include: template: camunda-platform/templates/camunda/_helpers.tpl:55:18: executing "camundaPlatform.labels" at <.Values.image.tag>: can't evaluate field tag in type interface {}

[2024-06-11T18:11:13.346Z] helm.go:84: [debug] template: camunda-platform/templates/operate/tests/test-connection.yaml:6:3: executing "camunda-platform/templates/operate/tests/test-connection.yaml" at <include "operate.labels" .>: error calling include: template: camunda-platform/templates/operate/_helpers.tpl:23:8: executing "operate.labels" at <include "camundaPlatform.labels" .>: error calling include: template: camunda-platform/templates/camunda/_helpers.tpl:55:18: executing "camundaPlatform.labels" at <.Values.image.tag>: can't evaluate field tag in type interface {}