Internal Server Error

Invalid argument supplied for foreach()

[cms/framework/f3/base.php:2347] Base->error()
[cms/framework/f3/db/sql/mapper.php:658] Base->{closure}()
[cms/framework/f3/db/cursor.php:177] DB\SQL\Mapper->reset()
[cms/model.php:37] DB\Cursor->load()
[cms/model.php:31] Model->_init()
[cms/helpers/url.php:37] Model->init()
[cms/helpers/url.php:55] Helpers\Url::SEO_link()
[tmp/1w157d3mk7xm1.2abfhz4b4rr4s.php:55] Helpers\Url::canonicalUrl()
[cms/framework/f3/base.php:2908] require('/var/www/vhosts/consultingsei.it/httpdocs/tmp/1w157d3mk7xm1.2abfhz4b4rr4s.php')
[cms/framework/f3/base.php:3152] View->sandbox()
[cms/framework/rstemplate.php:143] Preview->render()
[cms/controller.php:27] RsTemplate->render()
[cms/controllers/frontend.php:66] Controller->_render()
[cms/framework/f3/base.php:1960] Controllers\Frontend->index()
[cms/framework/f3/base.php:1759] Base->call()
[cms/app.php:24] Base->run()
[index.php:16] App->run()

DB LOG