Edit Book Grid – Preview

Hello,

When I click in “Edit Book Grid -> Preview” I get these PHP notices in debug file. Of course, I have debug mode on:

Debugging in WordPress

[19-Sep-2021 17:04:13 UTC] PHP Notice:  Undefined variable: object in /home/user/domain.com/wp-content/plugins/mooberry-book-manager/includes/class-mbm-cmb-cpt.php on line 34
[19-Sep-2021 17:04:13 UTC] PHP Warning:  Creating default object from empty value in /home/user/domain.com/wp-content/plugins/mooberry-book-manager/includes/class-mbm-db-book-grid.php on line 18
[19-Sep-2021 17:04:13 UTC] PHP Notice:  Undefined property: stdClass::$post_title in /home/user/domain.com/wp-content/plugins/mooberry-book-manager/includes/class-mbm-book-grid.php on line 93
[19-Sep-2021 17:04:13 UTC] PHP Warning:  Illegal offset type in /home/user/domain.com/wp-includes/class-wp-object-cache.php on line 446
[19-Sep-2021 17:04:13 UTC] PHP Notice:  Array to string conversion in /home/user/domain.com/wp-content/plugins/mooberry-book-manager/includes/class-mbm-book-grid.php on line 716
[19-Sep-2021 17:04:13 UTC] PHP Notice:  Trying to get property 'ID' of non-object in /home/user/domain.com/wp-content/plugins/mooberry-book-manager/includes/class-mbm-book-grid.php on line 805

I hope that this makes sense to you. Just trying to be helpful.

Please, let me know if you want me to test anything.