I have the following errors after installing 1.3.4
Notice: Undefined property: id in c:\program files\easyphp1-7\www\moodle\calendar\lib.php on line 1013
Notice: Undefined property: id in c:\program files\easyphp1-7\www\moodle\calendar\lib.php on line 1013
Notice: Undefined property: firstname in c:\program files\easyphp1-7\www\moodle\lib\moodlelib.php on line 618
Notice: Undefined property: lastname in c:\program files\easyphp1-7\www\moodle\lib\moodlelib.php on line 618
Notice: Undefined property: id in c:\program files\easyphp1-7\www\moodle\blocks\participants\block_participants.php on line 42
Notice: Undefined property: description in c:\program files\easyphp1-7\www\moodle\blocks\participants\block_participants.php on line 43
Notice: Undefined property: id in c:\program files\easyphp1-7\www\moodle\blocks\section_links\block_section_links.php on line 51
How do I fix?