One-Page Checkout [Support Thread]

[lat9]

We had tried that when OPC was 2.3.4 and still got this error. I've updated the site to 3.5.1 and get the same error:

jquery.checkout_one.js?1618668915:54 setFormSubmitButton, payment-module: null
jquery.checkout_one.js?1618668915:54 Showing "confirm"
jquery.checkout_one.js?1618668915:54 Setting orderConfirmed (0), submitter (null)
jquery.checkout_one.js?1618668915:54 jQuery version: 3.5.1
jquery.checkout_one.js?1618668915:54 saveCustomerInfo, starts ...
index.php?main_page=checkout_one:56 {cache: false, type: "POST", traditional: true, dataType: "json", timeout: 5000,##…}
jquery.checkout_one.js?1618668915:998 Uncaught TypeError: Cannot read property 'length' of null
at jquery.checkout_one.js?1618668915:998
at c (jscript_jquery.min.js:2)
at Object.fireWith [as resolveWith] (jscript_jquery.min.js:2)
at Object.s.<computed> [as resolve] (jscript_jquery.min.js:2)
at Object.success (index.php?main_page=checkout_one:64)
at c (jscript_jquery.min.js:2)
at Object.fireWith [as resolveWith] (jscript_jquery.min.js:2)
at l (jscript_jquery.min.js:2)
at XMLHttpRequest.<anonymous> (jscript_jquery.min.js:2)

Just noticed I'm using the minified. Do you need the unminified to get the right line numbers?

Yes, unminified version will pinpoint where the issue is sourced.