Fatal error: Uncaught Error: Using $this when not in object context in /volume1/web/packages/system/panels/cms/080_users/child.role.tpl.php on line 4

Error: Using $this when not in object context in /volume1/web/packages/system/panels/cms/080_users/child.role.tpl.php on line 4

Call Stack:
    0.0001     359904   1. {main}() /volume1/web/packages/system/panels/cms/080_users/020_permissions/edit/role.tpl.php:0
    0.0002     360480   2. include('/volume1/web/packages/system/panels/cms/080_users/child.role.tpl.php') /volume1/web/packages/system/panels/cms/080_users/020_permissions/edit/role.tpl.php:3