No more confirmation text

Hi everybody,

Visual form Builder forms on my site have stopped showing confirmation text after successful submition. I tried to make a redirection to URL or different page but it doesnt work aswell. I tried to reinstall the plugin and theme but nothing helped so far. I’m using the latest version of the plugin and wordress.

Any ideas?

https://www.ads-software.com/extend/plugins/visual-form-builder/