WordPress 3.6-beta3-24385 Warning: call_user_func_array() expects parameter 1 .

Is this a fresh install or an upgrade?

I’ve upgrade all the night versions
The site is
https://www.pivari.com
In the home you can see the problems
If you open the single post e.g.
https://www.pivari.com/rovigo/macchia-rossa-nel-bianco-23886/
it seems good

also, when I open a new post I can’t select the post format in the top (only in the right column).

Have you tried:

– deactivating all plugins
– switching to the default theme.
– running the upgrade again

made. Nothing changed.
Probably it’s a problem of Twenty Thirteen theme?
They made an upgrade?

Well I’m not seeing the same warning in my 3.6 install.

do you use Twenty Thirteen theme?

Yes – it’s available in my 3.6 install. I’ve been helping with some feedback on the theme.

Twenty Twelve works corretly

Just re-activated 2013 now and absolutely nothing is showing up on my debug log. Is the error specific to a certain scenario?

are you interested to look inside? contact me via email https://www.pivari.com/about/contatta-pivari/

I’ve another site culture-tourism.org and I’ve a similar problem.
I think the problem is 2013 with video and quote posts.

Can you describe the scenario?

1) open add a new post
Now you can’t see over title the bar to select post form
2) probably if you have entered a quote (or video or …) format post you can see error in the home but if you look directly the post everything seems correct.
e.g. https://www.pivari.com/
and
https://www.pivari.com/rovigo/macchia-rossa-nel-bianco-23886/
or
https://www.pivari.com/tech/ridicoli-i-fotografi-tablet-ma-23872/
Tell me if you want and admin user. I’m not a tech

I just updated nightly and I also get the same error. It was showing the gallery fine before update. I just have the_content() function where this error is showing up..