Generated checkout url throw 404 error + token prefix outdated (?)

Hello.

I am testing this module on a fresh Drupal Commerce 2 install, but i am facing an issue with the generated url that always leads to 404 errors when i send them to. Their pattern seems correct (/checkout-resume/9/65254739/2AqkT_yXbZpg0_EbjuiIhzM5zEdOSvXfPl5fHBf42v4) but nonetheless the "claim" form never shows up.

I think there is a problem too in current codebase with the token naming as i had to change in code [commerce-order:...] to [commerce_order:...] (with an underscore instead of the hyphen). Maybe it's an outdated prefix since a commerce patch ?

Anyway am i missing a step here for the paths, has anyone faced the same problem ?

Thanks !