Http error when uploading image

hi! i am new to rtmedia and wordpress, and just began creating a website a few days ago. everything use to work fine, but now when a user tries to upload an image to the activity stream, the image shows an “http error” underneath the uploading bar. this happens after i have typed text into the box and pressed “post update”. I’m not sure how to fix this as I am very new to website building. thanks so much!

Hi Sara,

Please check with WordPress default theme and other plugins disabled. Also try re-saving permalinks. If none of this works check your server error logs.