I wanted to upload an image on the side bar and went to the widget and use visual editor. When I move the visual editor into the side bar, a message appear "Message from Webpage : Error : Invalid argument". I just click ok and proceed to "Add Media" and select the image I wanted to upload. However, after some time, the message "ERROR image.png An error occurred in the upload, please try again later" appear.
I click on the dismiss error. I went to File Zilla and check, the image is in the server but it did not appear in the WP media library. This problem has been 2 weeks as I follow the message "please try again later".
Appreciate if any members could help me on this. I am using version 3.9WP
Thank you in advance.