cant upload images by one of my theme but with other other theme i can

when i am trying to using my new theme and uploading logo or new background image nothing is happening after selecting image although image is being uploaded to wp-content/upload directory but it doesnot show on theme and with other themes i can upload images without any problem .. one more thing with all theme it is showing error
Error – The folder wp-content/uploads was not found!

but it is there