[TYPO3] rggooglemap problem

[LinTong]

hallo everybody
 
I installed the Extension rggooglemap and in LIST module there is a warning:
Warning: mysql_fetch_row(): supplied argument is not a valid MySQL result resource in C:\Program Files\Apache Group\Apache2\htdocs\t3lib\class.t3lib_db.php on line 822
and I can not create a new address element .
 
I use Typo3 4.2
 
Thanks very much
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