Odoo 11.0 CE Uncaught TypeError: Cannot read property 'equals' of undefined

[difra]

Errore:
Uncaught TypeError: Cannot read property 'equals' of undefined

http://localhost:8069/web/content/30924-90ddc6e/web.assets_backend.js:2983
Traceback:
TypeError: Cannot read property 'equals' of undefined
    at http://localhost:8069/web/content/30924-90ddc6e/web.assets_backend.js:2983:358
    at Array.forEach (<anonymous>)
    at Class._clusterAddMarker (http://localhost:8069/web/content/30924-90ddc6e/web.assets_backend.js:2983:275)
    at Class._createMarker (http://localhost:8069/web/content/30924-90ddc6e/web.assets_backend.js:2983:75)
    at http://localhost:8069/web/content/30924-90ddc6e/web.assets_backend.js:2985:1674
    at Function._.each._.forEach (http://localhost:8069/web/content/30872-7f6ef79/web.assets_common.js:12:558)
    at Class._renderUngrouped (http://localhost:8069/web/content/30924-90ddc6e/web.assets_backend.js:2985:1488)
    at Class._renderMarkers (http://localhost:8069/web/content/30924-90ddc6e/web.assets_backend.js:2985:941)
    at Class._renderView (http://localhost:8069/web/content/30924-90ddc6e/web.assets_backend.js:2990:556)
    at Class.prototype.<computed> [as _renderView] (http://localhost:8069/web/content/30872-7f6ef79/web.assets_common.js:3816:488)