GitLab

Example page with the crash:
https://cross2017-test.kilpho.st/basic-page

Error messages:

Fatal error:

PHP Fatal error:  Call to a member function buildRenderable() on null in /var/platform/cross2017/test/app/modules/contrib/alloy_blog/alloy_blog.module on line 150

Notices on subsequent pages:

Notice: Undefined variable: field_name in Drupal\cross_specialties\SpecialtyManager->getSpecialty() (line 54 of modules/custom/cross_specialties/src/SpecialtyManager.php).
Notice: Undefined variable: field_name in Drupal\cross_specialties\SpecialtyManager->getSpecialty() (line 54 of modules/custom/cross_specialties/src/SpecialtyManager.php).
Notice: Undefined index: values in alloy_blog_preprocess_assembly() (line 140 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: values in alloy_blog_preprocess_assembly() (line 140 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: values in alloy_blog_preprocess_assembly() (line 140 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: values in alloy_blog_preprocess_assembly() (line 140 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: values in alloy_blog_preprocess_assembly() (line 140 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: values in alloy_blog_preprocess_assembly() (line 140 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).
Notice: Undefined index: #items in alloy_blog_preprocess_node() (line 78 of modules/contrib/alloy_blog/alloy_blog.module).