Steps to reproduce the issue

This has posted in the forum and was able to reproduce it.
See http://forum.joomla.org/viewtopic.php?f=710&t=913801

Some components give errors if a Related article module is enabled.

Enable a related items modules on all pages.
For instance enable search component.
Try to do a search in the frontend.

Expected result

Works fine.

Actual result

500 error with fatal error

Fatal error: Uncaught Error: Call to a member function setState() on boolean in /path/to/joomla/modules/mod_related_items/helper.php:44 

System information (as much as possible)

Joomla 3.5.0

Additional comments

Temporary solution to prevent fatal errors

Unpublish Related Articles Module.

Call stack

1 JApplicationCms->execute() /path/to/joomla/index.php:49
2 JApplicationSite->render() /path/to/joomla/libraries/cms/application/cms.php:263
3 JApplicationCms->render() /path/to/joomla/libraries/cms/application/site.php:745
4 JDocumentHtml->render() /path/to/joomla/libraries/cms/application/cms.php:1068
5 JDocumentHtml->_renderTemplate() /path/to/joomla/libraries/joomla/document/html.php:477
6 JDocumentHtml->getBuffer() /path/to/joomla/libraries/joomla/document/html.php:697
7 JDocumentRendererHtmlModules->render() /path/to/joomla/libraries/joomla/document/html.php:411
8 JDocumentRendererHtmlModule->render() /path/to/joomla/libraries/joomla/document/renderer/html/modules.php:42
9 JModuleHelper::renderModule() /path/to/joomla/libraries/joomla/document/renderer/html/module.php:93
10 include() /path/to/joomla/libraries/cms/module/helper.php:190
11 JModuleHelper::moduleCache() /path/to/joomla/modules/mod_related_items/mod_related_items.php:22
12 JCacheControllerCallback->get() /path/to/joomla/libraries/cms/module/helper.php:561
13 ModRelatedItemsHelper::getList() /path/to/joomla/libraries/joomla/cache/controller/callback.php:157