Hi @erfan9193,
Please go to WordPress Dashboard-> Plugins-> Installed Plugins-> and send a screenshot with everything you have installed related to PB. You can use a site like https://snipboard.io/ to share the screenshots.
We deeply apologize for the delayed answer!
The development team has finished fixing the issue and it will be added in the next update of Profile Builder. Meanwhile, until we release the next update you can download the latest version of Profile Builder that contains this fix from here: https://www.cozmoslabs.com/download/2283043/?tmstv=1698135210
After you install the archive from the above link go to Profile Builder-> Settings-> General-> Disable the Email Confirmation functionality and reactivate it back.