Plug.Conn.WrapperError happened in CodeStats.PageController#index
If client has a session for user that doesn't exist anymore, the site will crash.
HTTP request error: ** (UndefinedFunctionError) function nil.username/0 is undefined or private
Backtrace (last 10 lines)
(elixir) lib/exception.ex:929: UndefinedFunctionError.exports_for/1
(elixir) lib/exception.ex:896: UndefinedFunctionError.did_you_mean/3
(elixir) lib/exception.ex:881: UndefinedFunctionError.function_not_exported/4
(elixir) lib/exception.ex:854: UndefinedFunctionError.message/1
(elixir) lib/exception.ex:54: Exception.message/1
(elixir) lib/exception.ex:120: Exception.format_banner/3
(elixir) lib/exception.ex:54: Exception.message/1
View on AppSignal: https://appsignal.com/code-stats/sites/59d14436fc940e6e2ba7626a/incidents/36