I don’t really think you can get rid of the “Questions” part in sub pages.

How can it be that ANSPRESS_TITLE was used as the base page? There were explicit instructions on the setup page NOT to use it as the base page.

Use FTP, SFTP or SSH to copy over the new Questions Labels plugin over the old one and it will update the folder content, so you have the new plugin version, but the old settings in the database will still be there.

Hi, we use AnsPress in our web page. However after, update that version 2.4, our ask page is not working anymore. Moreover, our base page title changed by itself. We think something goes wrong in plugin. Could you help us?

Did you changed askbug theme folder name to anything else? if so, simply download theme and manually copy to theme folder. Else updater will try to rename the theme folder.

https://github.com/anspress/anspress#24 or https://wordpress.org/plugins/anspress-question-answer/changelog/

May be its file permission issue.