Nginx community app 1.3.7 fails to update

I am trying to update my nginx app but it fails with this error:

[EFAULT] Failed to render compose templates: Traceback (most recent call last):
File "/usr/bin/apps_render_app", line 33, in sys.exit(load_entry_point('apps-validation==0.1', 'console_scripts', 'apps_render_app')()) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/catalog_templating/scripts/render_compose.py", line 48, in main render_templates_from_path(args.path, args.values)
File "/usr/lib/python3/dist-packages/catalog_templating/scripts/render_compose.py", line 19, in render_templates_from_path rendered_data = render_templates( ^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/catalog_templating/render.py", line 31, in render_templates rendered_templates[i.name] = env.get_template(i.name).render( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/jinja2/environment.py", line 1301, in render self.environment.handle_exception()
File "/usr/lib/python3/dist-packages/jinja2/environment.py", line 936, in handle_exception raise rewrite_traceback_stack(source=source)
File "/mnt/.ix-apps/app_configs/nginx-proxy-manager/versions/1.3.7/templates/docker-compose.yaml", line 11, in top-level template code {% do c1.environment.add_user_envs(values.npm.additional_envs) %} ^^^^^^^^^^^^^^^^^^^^^^^^^
File "/mnt/.ix-apps/app_configs/nginx-proxy-manager/versions/1.3.7/templates/library/base_v2_3_4/environment.py", line 89, in add_user_envs raise RenderError( base_v2_3_4.error.RenderError: Found duplicate environment variable [proxy_set_header] in user environment variables. 

Is this an error in the app deployment or am I supposed to remove the duplicate env variable somehow?

This was purely a user error. I had a duplicate entry in the “Additional Environment Variables” entry