That\'s a really strange error.
Line 45 from /components/com_opensim/views/maps/view.html.php:
$maptable .= \"<td style=\'padding:0px;\'>\";
... there should be nothing that causes memory problems.
Do you have any phpMyAdmin or so and can paste here the content of the table \"regions\"? Specially the columns \"locX\" and \"locY\" I\'ld be interested in.
Greetz
FoTo50