Problem with editor

Hi

I have a problem with the Enfold editor, it show the loading symbol in pages, but never finishes. I did not make the site, but been called to debug it.

I send you the logins in private content part, if you can have a look it would be nice.

The inspector tells me there is a problem with JS:
Uncaught Error: cannot call methods on sortable prior to initialization; attempted to call method ‘toArray’
at Function.error (http://www.cepuspp-enfant-ado.ch/test/wp-admin/load-scripts.php?c=1&load%5B%5D=jquery-core,jquery-migrate,utils,plupload&ver=4.7.5:2:1814)
at HTMLDivElement.<anonymous> (http://www.cepuspp-enfant-ado.ch/test/wp-admin/load-scripts.php?c=1&load%5B…uery-ui-sortable,jquery-ui-draggable,jquery-ui-droppable&ver=4.7.5:22:2115)
at Function.each (http://www.cepuspp-enfant-ado.ch/test/wp-admin/load-scripts.php?c=1&load%5B%5D=jquery-core,jquery-migrate,utils,plupload&ver=4.7.5:2:2881)
at a.fn.init.each (http://www.cepuspp-enfant-ado.ch/test/wp-admin/load-scripts.php?c=1&load%5B%5D=jquery-core,jquery-migrate,utils,plupload&ver=4.7.5:2:846)
at a.fn.init.a.fn.(anonymous function) [as sortable] (http://www.cepuspp-enfant-ado.ch/test/wp-admin/load-scripts.php?c=1&load%5B…uery-ui-sortable,jquery-ui-draggable,jquery-ui-droppable&ver=4.7.5:22:1857)
at HTMLDivElement.<anonymous> (http://www.cepuspp-enfant-ado.ch/test/wp-admin/js/postbox.min.js?ver=4.7.5:1:3165)
at Function.each (http://www.cepuspp-enfant-ado.ch/test/wp-admin/load-scripts.php?c=1&load%5B%5D=jquery-core,jquery-migrate,utils,plupload&ver=4.7.5:2:2881)
at a.fn.init.each (http://www.cepuspp-enfant-ado.ch/test/wp-admin/load-scripts.php?c=1&load%5B%5D=jquery-core,jquery-migrate,utils,plupload&ver=4.7.5:2:846)
at Object.save_order (http://www.cepuspp-enfant-ado.ch/test/wp-admin/js/postbox.min.js?ver=4.7.5:1:3103)
at $.AviaBuilder.place_top (http://www.cepuspp-enfant-ado.ch/test/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/assets/js/avia-builder.js?ver=0.8:132:34)