I don't know if this is happening to anyone else.But when-ever I click on forums or Edit Profile,  A error shows up and says 'missing birthday'. I've entered my birthday in 3 times today. I even tried putting in March for my birthday Instead of april to see if that would work but it didn't. The error still shows up whenever I click on certain things

I've been having this problem, although not when I go to Forums. When I update my settings under "Edit Profile", it'll come up every time.

This happened about a month ago when everyone was logging in. Everytime we logged in, it would come up. That has since been fixed and I assumed Sam was still working on fixing it completely. 

Pretty much what Sassafras said! I've started to just enter random nonsensical dates until it's fixed. I think my birthday right now is in 1916.

Everytime you update your profile, you will have to put in your birthday...

Every time you edit your profile it will ask you to update your profile.  It's a known bug we are working on trying to fix.  ALSO!  If you have multiple tabs open of HP and you edit your profile, you will have to refresh the page to get the error to go away.  It will even populate into chat and it looks like this:

Okay thanks!

You betcha! ☺

I keep forgetting this. I will update my profile and then open a bunch of tabs lol

I sure I am like 3 on one account X.x

I think part of this problem is that the birthdays are no longer listed on the edit profile until after you hit updated, then it shows up as nothing being entered. (I'm pretty sure it used to show on the edit profile page a while back...)

★ Like a drum, baby, don't stop beating★

I had this problem as well - thanks for the tips!

They set it up this way so it wasn't happening like every time you logged in. They are working on it but any time you edit your profile this is going to pop up. Annoying yes, but better than the alternative! :)

_{I've been getting this issue a fair bit recently. My error page isn't as pretty as Tronic's though. Figured I'd post it because it's actually saying specifically where the issue is occuring in code, down to the line number... Not sure if you have this.}

_{Looks like it's an issue with the variable type being passed to the function.}

_{http://stackoverflow.com/questions/26115771/warning-mktime-expects-parameter-4-to-be-long-string}

_{^^ Might help}