Maps plugin causing A LOT of PHP notices in the admin dashboard

All of them related to unset constants/variables, I guess someone needs to use if(isset($foor['bar']) && $foo['bar']) { and defined() instead of just checking for the value.

Notice: Use of undefined constant AgmPluginInstaller - assumed 'AgmPluginInstaller' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/wpmu_dev_maps_plugin.php on line 71

Notice: Undefined index: use_custom_fields in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 325

Notice: Use of undefined constant create_height_box - assumed 'create_height_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 30

Notice: Use of undefined constant create_width_box - assumed 'create_width_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 31

Notice: Use of undefined constant create_map_type_box - assumed 'create_map_type_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 32

Notice: Use of undefined constant create_map_zoom_box - assumed 'create_map_zoom_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 33

Notice: Use of undefined constant create_image_size_box - assumed 'create_image_size_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 34

Notice: Use of undefined constant create_image_limit_box - assumed 'create_image_limit_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 35

Notice: Use of undefined constant create_alignment_box - assumed 'create_alignment_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 36

Notice: Use of undefined constant create_custom_css_box - assumed 'create_custom_css_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 37

Notice: Use of undefined constant create_use_custom_fields_box - assumed 'create_use_custom_fields_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 40

Notice: Use of undefined constant create_custom_fields_map_box - assumed 'create_custom_fields_map_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 41

Notice: Use of undefined constant create_custom_fields_options_box - assumed 'create_custom_fields_options_box' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_admin_maps.php on line 42

There's also 2 in the frontend:

Notice: Use of undefined constant AgmPluginInstaller - assumed 'AgmPluginInstaller' in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/wpmu_dev_maps_plugin.php on line 71

Notice: Undefined index: use_custom_fields in /sites/memiahsites/wp-content/plugins/wpmu_dev_maps_plugin/lib/class_agm_user_maps.php on line 133