screenshot

I scroll down 3 times at https://www.mediawiki.org/wiki/Talk:Compact_Personal_Bar
and it gives the error "Exception Caught: Did not load root post rvg6fraf4y5zgwsg"

Webconsole says:
"Exception Caught: Did not load root post rvg6fraf4y5zgwsg" load.php:164
console.trace(): load.php:164
mw.log</log.warn() load.php:164
FlowBoardComponent.UI.showError() load.php:203
FlowBoardComponent.UI.events.interactiveHandlers.apiRequest/<() load.php:197
jQuery.Callbacks/fire() load.php:44
jQuery.Callbacks/self.fireWith() load.php:46
.Deferred/</deferred[tuple[0]]() load.php:47
mw.Api.prototype.ajax/xhr<() load.php:29
jQuery.Callbacks/fire() load.php:44
jQuery.Callbacks/self.fireWith() load.php:46
done() load.php:135
.send/callback()

In trello as https://trello.com/c/fd6DBcIl/

Version: unspecified
Severity: normal

Attached: