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. It is the theme.

Please get back to me on this, best wishes and thank you, joan http://www.joanwalsh.ie