2x different installations. 2x on different servers and providers. The first step is to open and modify articles from the category HOME_SLIDER in the text. After saving, the following warning appears. "Invalid Parent ID" I can not remember. Then I installed the JCE editor and tried to open an article from HOME-SLIDER. Failure "Save failed with the following error: Invalid Parent ID"
For several articles the same.


HEEEELP
Thank you very much