No Message Box after forum upgrade

[capitals]

I just ran the latest upgrade. The message box does not open in my forum. This is as usual when I upgrade to the latest version. In the past you have instructed me to clear my Cloudflare cache and that has solved the problem. This time it did not. As a result, I'm unable to post on my board. 

Thanks for your help. 

[Marc]

Issue with your cache by the look of it. Cleared the cache from your admin CP and things are back to normal for you