blank edit page issue. 3.9. pinboard

hi,
I had upgraded to 3.9.

complete blank page in edit page / back end of one page. I changed theme to twenty twelve = the edit page / back end of a page returns to normal. therefore i am writing to you, to see if anyone else has the same problem. and a possible solution

I also of course, deactivated and activated plugins = two plugins also causing problem ‘all in one favicon’ and ‘askimet’- ( i have written to them also) = when in pinboard theme, when i deactivate these two pkugins, the edit page returns to normal. HOWEVER, when i change theme to twenty twelve (to test), BOTH plugins do not cause an issue.

hope you can help, thought i better write to you. love the theme. best wishes and thank you, joan http://www.joanwalsh.ie