use this steps to delete bbpress
1. Log into your WordPress back-end.
2. Go to Plugins > Installed Plugins .
3. Scroll down until you see bbPress and click Deactivate.
4. After the page reloads , scroll back down to the bbPress plugin , now click the red Delete link.
5. You will now see a screen to confirm your deletion of the bbPress plugin, if you are sure you want to remove bbPress from your installation, hit the OK. button.
6. bbPress is now uninstalled from your site.
hello robin please check out this https://colorlib.com/out/jollyany-demo this is greate theme for bbpress