Hi Guys

I have been working on this site for ages and was about to publish it today but only to find a error when adding an item to the cart. 

Please could you direct me to the correct place to fix this. 

I would greatly appreciate it

UncaughtPromiseError > TypeError

Uncaught Promise > Cannot read properties of undefined (reading 'then')

TypeError: Cannot read properties of undefined (reading 'then')

at Class._submitForm (https://*****/web/assets/debug/3/web.assets_frontend_lazy.js:127437:17) (/website_sale_product_configurator/static/src/js/website_sale_options.js:48)

at Class._submitForm (https://*****/web/assets/debug/3/web.assets_frontend_lazy.js:70682:38) (/web/static/src/legacy/js/core/class.js:124)

at Class.trigger (https://*****/web/assets/debug/3/web.assets_frontend_lazy.js:73242:31) (/web/static/src/legacy/js/core/mixins.js:224)

at Class.trigger (https://*****web/assets/debug/3/web.assets_frontend_lazy.js:73346:42) (/web/static/src/legacy/js/core/mixins.js:328)

at https://*****/web/assets/debug/3/web.assets_frontend_lazy.js:121086:22 (/sale_product_configurator/static/src/js/product_configurator_modal.js:96)

at async Promise.all (index 0)