I am unable to upload any new documents to my account, it is giving me the error that my box is full it is not according to my online account.

Hi Theresa, 

Welcome to Box Community and glad to assist! 

It seems that you're uploading files to your collaborated folder. Please reach out to the folder owner and make sure he/she has free storage to store new files/folders. 

Thanks for posting! 

Hello, I posted a screen shot so you could see that there is storage available.