Bugs/Errors in script and questions

1. I keep getting this error when submitting a question or trying to view a question:
Catchable fatal error: Object of class WP_Error could not be converted to string in /home/realesta/public_html/wp-content/themes/daily/functions.php on line 240

2. Additionally, why does the plugin look so ugly on my site, way off centered:

3. I did not see the feature for users to signup to receive notifications of answers

4. Is there a way to have it work from /legal-questions/ instead of /questions. Where do I change this.