Hi, I upgraded my app to Ruby 2.7, found the Sidekiq v5.2.7 web failed with the error trace : ```FATAL -- :TypeError (can't quote Rack::Session::SessionId): activerecord (6.0.2.1) lib/active_record/connection_adapters/abstract/quoting.rb:231:in `_quote' ... activerecord-session_store (1.1.3) lib/active_record/session_store/session.rb:58:in `find_by_session_id' ``` When I commented out `session_store :active_record_store, ...` in `config/initializers/session_store.rb`, the sidekiq web is fine. It might be a Sidekiq issue, post here just in case. Jason