: array_merge() [function.array-merge]: Argument #1 is not an array in /home/cardiffb/public_html/wp

When first setting up site I made some "test" postings although these have been deleted I have so far today had over 40 emails all about the same post, so far!! saying this:
Dear admin,
Your listing is expired. We inform you, if you are interested to reactivate your listing,
Login in our website and reactivate it.
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Your listing Title: testhairdresser

Also getting that warning at the top of my site.about array-merge etc etc

Help please, Quick !!
Using version 1.7

 

We have resolved this issue and going to update theme in next two days.

 

So I have to continue getting emails every few minutes for the next 2 days ?

 

I take it that's a yes then !!