Previously I could save to the Cloud. Now when I try to save to the Cloud, I get the error "java.io.IOException_ Server returned HTTP response code_ 500 for URL_ https_softchalkcloud.com_api_upload_preverify" What is the issue?

You have reached the maximum storage limit on your SoftChalk account. Please either:

You can view your storage limit within your Cloud account by going to Account / Overview.