I haven't received an email notification from any of the sites I'm subscribed to since Thursday, August 30th, at 3:17am EST. What happened?

#if takes the first "]]" it finds as its closing tag

Sending a invitation to an email to get someone to join Wikidot and my wiki is failing instantly with "delivery failed" although the invitation page just sits with a spinning indicator forever.

Since the Activity tab in user profile has been disabled since who knows when, I am unable to view the list of the pages I'm watching. Please, either fix the Activity thing, or move the Watching feature out of there someplace it will be usable.

When someone tries to join the site or send an email trough a form, it´s displayed a warning with this message:

The "Tagline / subtitle" field contains a URL. Everything looks fine in Firefox and Safari, but the display is borked in Chrome and Internet Explorer. See https://imgur.com/cac15Lq

I keep getting "error 504" after I've filled in everything correctly. Tried using different browsers as well.

Currently no new Wikidot accounts can be created!

All the sudden before this event some of my troops are missing
One of them i noticed right away cause i have been working hard to upgrade to use for events was Banamaw so i had to upgrade other things .

http://mathonline.wikidot.com/euler-s-criterion
the equation in example 2 should be "x^2≡15(mod29)", not "x≡15(mod29)".