Deleting a picture on a PollUnit

This pollunit that I created doesn't give me the option to admin link or edit.
I need to delete one of the pictures that apparently is offensive to a certain culture/religion within our photo community. I had no idea it was offensive because I'm unaware of this and had no intention to cause offense. I have no access to modify this Pollunit or just delete completely if necessary. Please help!!

Hi,
Can you send the link to philipp@pollunit.com? And also name me the offensive picture.
Then we can have a look.
Kind regards
Philipp

Hi Philipp,
Yes, I will email you now with the link and give you the name of the picture.
Thanks.