[TYPO3] mysql_fetch_assoc()

[Aji Johannes]

Hallo List,
i get this  warning, when i creat page content like Regular text element 
or Text with image, but with Images only or Bullet List , ... NOT


" Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL 
result resource in D:\www\typo3_4_0_2\t3lib\class.t3lib_db.php on line 801 "


did anyone know why  this warning appear in BE ????

thanks

Johannes