Can't upload photos/images

I can't seem to upload images/photos to a drama's page. I've tried both JPG and PNG. Is there a certain size limit? 

I uploaded a few official youku posters yesterday. I deleted two of them because I realised two were duplicates, due to two of them being posted earlier by someone else. I have several more official posters but before I could upload any further, I find I cannot upload any more photos for the drama, be it png or jpg. This problem persists today, more than 8 hours later. Do I email [email protected]?