error: user register agent

hi there!
I am trying to register to become an agent but it fails. The error is as follows:

underscore.min.js?ver=1.8.3:2 Uncaught TypeError: Cannot read property 'replace' of undefined
    at Function.v.template (underscore.min.js?ver=1.8.3:2)
    at wp-util.min.js?ver=5.7:2
    at Object.confirm_dialog (ere-main.min.js?ver=3.5.1:1)
    at HTMLButtonElement.<anonymous> (ere-profile.min.js?ver=3.5.1:1)
    at HTMLButtonElement.dispatch (jquery.min.js?ver=3.5.1:2)
    at HTMLButtonElement.v.handle (jquery.min.js?ver=3.5.1:2)
v.template @ underscore.min.js?ver=1.8.3:2
(anonymous) @ wp-util.min.js?ver=5.7:2
confirm_dialog @ ere-main.min.js?ver=3.5.1:1
(anonymous) @ ere-profile.min.js?ver=3.5.1:1
dispatch @ jquery.min.js?ver=3.5.1:2
v.handle @ jquery.min.js?ver=3.5.1:2

The page I need help with: [log in to see the link]