Close <a> tag in error template
Close <a> tag in error template

The error template is missing a closing <a> tag in the link to the harbor portal.

Signed-off-by: Pedro Laguna <40a5f61f5adfc99d096e6711dc75acddf7bdc642@users.noreply.github.com>

reasonerjt/harbor,wy65701436/harbor,wy65701436/harbor,reasonerjt/harbor,reasonerjt/harbor,reasonerjt/harbor,wy65701436/harbor,wy65701436/harbor,wy65701436/harbor,reasonerjt/harbor,reasonerjt/harbor,wy65701436/harbor