Once i've submitted the admin settings at courses > incremental backup the page reloads with a heap of errors .

these are just some of the errors
Notice: Trying to get property of non-object in C:\projects\VLE\Mobile Moodle\environments\xampplite-win32-1.6.6.exe\development\offlinemoodle-0.3\htdocs\moodle\admin\pagelib.php on line 41

Warning: array_reverse() [function.array-reverse]: The argument should be an array in C:\projects\VLE\Mobile Moodle\environments\xampplite-win32-1.6.6.exe\development\offlinemoodle-0.3\htdocs\moodle\admin\pagelib.php on line 41

Warning: Invalid argument supplied for foreach() in C:\projects\VLE\Mobile Moodle\environments\xampplite-win32-1.6.6.exe\development\offlinemoodle-0.3\htdocs\moodle\admin\pagelib.php on line 119

Warning: implode() [function.implode]: Invalid arguments passed in C:\projects\VLE\Mobile Moodle\environments\xampplite-win32-1.6.6.exe\development\offlinemoodle-0.3\htdocs\moodle\admin\pagelib.php on line 124