Try renaming it to something totally different, if you haven't already (instead of just removing the apostrophe).

I'm not sure if renaming it to something totally different will work, though you can give it a shot!

If not, could you let me know the gallery name and category name (as it is currently, with the apostrophe) and I can edit it to something without an apostrophe for you. Once I've edited it to remove the apostrophe, you will then be able to rename it to whatever you'd like.

Thank you! I've renamed it to "Challenger Loot Pile o Crap" (just removed the apostrophe) - you should be able to edit it now :)