When i login to my Point of sale i get this error: 

Traceback: Error: QWeb2 - template['Product']: Runtime Error: TypeError: dict.product.get_display_price is not a function exception@https://demo.app/web/content/3783-e0e855c/web.assets_common.js:3692:7 anonymous@https:// demo .app/web/content/3783-e0e855c/web.assets_common.js line 3734 > Function:45:29 _render@https:// demo .app/web/content/3783-e0e855c/web.assets_common.js:3733:296 render@https:// demo .app/web/content/3783-e0e855c/web.assets_common.js:3733:151 _render@https:// demo .app/web/content/3783-e0e855c/web.assets_common.js:3737:57 render@https:// demo .app/web/content/3783-e0e855c/web.assets_common.js:3733:151 render_product@https:// demo.app/web/content/687-11e17a5/point_of_sale.assets.js:407:312 renderElement@https:// demo.app/web/content/687-11e17a5/point_of_sale.assets.js:409:149 replace@https:// demo.app/web/content/687-11e17a5/point_of_sale.assets.js:406:695 start@https:// demo.app/web/content/687-11e17a5/point_of_sale.assets.js:410:1153 _widgetRenderAndInsert/