Help please

I have a problem when I try to upload my texture pack. I choose the file ( it is a .zip file ) and I press save. It takes forever saying saving or uploading. ( I can not remember, sorry I think it says uploading. ) I have also tried to just press the save button while it is still doing this but I get an error. It says to change/fix the title I think. Please help and thank you for looking at this,