Redmine

I restored version 2.3.3 from backup after hardware failure. But not a single issue opens.

ActionView::Template::Error (undefined method `name' for nil:NilClass):
68: <%= call_hook(:view_issues_show_details_bottom, :issue => @issue) %>
69: </table>
70:
71:
72:
73: <%= call_hook(:view_issues_show_description_bottom, :issue => @issue) %>
74:
app/views/issues/show.html.erb:71:in `_app_views_issues_show_html_erb___308771374_62894976'
app/controllers/issues_controller.rb:119:in `block (2 levels) in show'
app/controllers/issues_controller.rb:116:in `show'

Pls. Help me