Error message

• Warning: tempnam() [function.tempnam]: open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/home/mm4206/) in drupal_tempnam() (line 2307 of /home/mm4206/public_html/includes/file.inc).
• Warning: file_put_contents() [function.file-put-contents]: Filename cannot be empty in file_unmanaged_save_data() (line 1845 of /home/mm4206/public_html/includes/file.inc).
• The file could not be created.
• Notice: Trying to get property of non-object in gmap_regenerate_markers() (line 555 of /home/mm4206/public_html/sites/all/modules/gmap/gmap.module).