/templates/type/edition/view.tmpl: error in processing template: TypeError: sequence item 0: expected string, instance found (falling back to default template)

/templates/type/edition/view.tmpl: error in processing template: TypeError: sequence item 0: expected string, instance found (falling back to default template)

/opt/openlibrary/production/openlibrary/plugins/oltemplates/templates/type/edition/view.html: error in processing template: TypeError: sequence item 0: expected string, instance found (falling back to default template)