User Can't Submit Form

Hello – I am using this plug-in, but it won’t send the form, it is saying that “This field is required” for Lead Source even when I select the Lead Source.

In fact it does it to the last field even when I change the order of them.

It also doesn’t send visitors to the thank you page once it has been filled in.

Please help … ???

homebuyersgroup dot com dot au / contact

https://ww.wp.xz.cn/plugins/salesforce-wordpress-to-lead/