Paypal Error preventing checkout

[artfulweb]

Uncaught SyntaxError: Failed to execute 'querySelector' on 'Element': ':submit' is not a valid selector.
at HTMLFormElement.<anonymous> (checkout_confirmation.php?ceid=015b8fcf8041df5818c2c408fe32a505:348:34)

[artfulweb]

In chrome dev tools, click the three dots then the first dock side option to pop the dev tools out into their own window.
Screenshot 2025-08-02 184207.png

Then make sure console is selected, not elements
Screenshot 2025-08-02 184559.png

Uncaught SyntaxError: Failed to execute 'querySelector' on 'Element': ':submit' is not a valid selector.
at HTMLFormElement.<anonymous> (checkout_confirmation.php?ceid=015b8fcf8041df5818c2c408fe32a505:348:34)

also:
checkout_confirmatio…8c2c408fe32a505:490 SyntaxError: Unexpected token '<', "<!DOCTYPE "... is not valid JSON
at JSON.parse (<anonymous>)
at checkout_confirmatio…c408fe32a505:479:31
(anonymous) @ checkout_confirmatio…8c2c408fe32a505:490
Promise.then
(anonymous) @ checkout_confirmatio…8c2c408fe32a505:477

[BrockleyJohn]

There are a couple of things happening at once. Please PM your site url so I can fully debug.

[BrockleyJohn]

Turned out to be missing the file

[catalog]/ext/modules/payment/paypal/checkout_confirmation.php