diff --git a/app/logical/post_query_builder.rb b/app/logical/post_query_builder.rb
index 891093b8b..2a7ce3227 100644
--- a/app/logical/post_query_builder.rb
+++ b/app/logical/post_query_builder.rb
@@ -947,8 +947,6 @@ class PostQueryBuilder
 
       set_cached_count(count) if count.present?
       count
-    rescue Post::SearchError
-      nil
     end
 
     def set_cached_count(count)
diff --git a/app/models/post.rb b/app/models/post.rb
index 4eaec90e1..ec7ae3685 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -1,10 +1,6 @@
 class Post < ApplicationRecord
-  class ApprovalError < StandardError; end
-  class DisapprovalError < StandardError; end
   class RevertError < StandardError; end
-  class SearchError < StandardError; end
   class DeletionError < StandardError; end
-  class TimeoutError < StandardError; end
 
   # Tags to copy when copying notes.
   NOTE_COPY_TAGS = %w[translated partially_translated check_translation translation_request reverse_translation
diff --git a/app/models/user.rb b/app/models/user.rb
index 0db009a3f..0281fbe59 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,5 +1,4 @@
 class User < ApplicationRecord
-  class Error < StandardError; end
   class PrivilegeError < StandardError; end
 
   module Levels