Steps to reproduce the issue

I just go to any public page where the search feature is available and enter a word to search.

Expected result

It should show me a page with the results.

Actual result

Just an empty white page. No results, nothing. Not even telling me that no results have been found.

System information (as much as possible)

OS Linux n
PHP 5.6.17
MySQL 5.6.29
Caching Enabled
GZip Enabled
Users 1
Articles 204

Additional comments

Not sure if it's related, but my site generates a new entry in my error_log when I test the search feature. He is the latest entry (they are say the same).

[29-Mar-2016 15:21:17 America/Toronto] PHP Fatal error: Call to a member function setState() on boolean in /home/public_html/modules/mod_related_items/helper.php on line 44


When I was on Joomla 3.4.8. The search feature was working okay.

Now after I updated to Joomla 3.5 the search results gives me blank page. Not even the theme shows on the blank page. Broken maybe?

I updated from 3.4.8 to 3.5 via the Joomla! Update component. Plus I cleared my cache. I can't seem to understand why it's broken? Anyone?