TypeError: /Datos/httpd_frontal/app/views/includes/mixins.jade:97
   95| | !{uri}
   96| else
 > 97| if uri['@language'].toUpperCase() == 'ES'
   98| | !{uri['@value']}    
   99|
   100| mixin relations(relations,clase)

Cannot read properties of undefined (reading 'toUpperCase')
   at Object.jade_mixins.pretty_label_for_uri (eval at exports.compile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:179:8), <anonymous>:884:23)
   at Object.eval (eval at exports.compile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:179:8), <anonymous>:485:36)
   at Object.jade_mixins.label (eval at exports.compile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:179:8), <anonymous>:515:4)
   at Object.jade_mixins.literal_or_link (eval at exports.compile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:179:8), <anonymous>:777:21)
   at Object.eval (eval at exports.compile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:179:8), <anonymous>:6220:31)
   at Object.eval (eval at exports.compile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:179:8), <anonymous>:6257:4)
   at Object.jade_mixins.draw_table (eval at exports.compile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:179:8), <anonymous>:6534:4)
   at eval (eval at exports.compile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:179:8), <anonymous>:8342:26)
   at eval (eval at exports.compile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:179:8), <anonymous>:9631:22)
   at res (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:180:38)
   at Object.exports.render (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:305:10)
   at Object.exports.renderFile (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:341:18)
   at View.exports.renderFile [as engine] (/Datos/httpd_frontal/node_modules/jade/lib/jade.js:326:21)
   at View.render (/Datos/httpd_frontal/node_modules/express/lib/view.js:135:8)
   at tryRender (/Datos/httpd_frontal/node_modules/express/lib/application.js:640:10)
   at Function.render (/Datos/httpd_frontal/node_modules/express/lib/application.js:592:3)