Errors with debug on when adding block instance on Moodle 3.7

[Logan Reynolds]

When adding an instance of the latest block version 2019050800 release 1.8.2 to a course on Moodle 3.7, I'm encountering the following error with debug turned on:

line 263 of /blocks/mootivated/classes/manager.php: call to local_mootivated\school->get_user_coins()
line 198 of /blocks/mootivated/classes/manager.php: call to block_mootivated\manager->get_coins_from_server()
line 618 of /blocks/mootivated/classes/renderer.php: call to block_mootivated\manager->get_coins()
line 394 of /blocks/mootivated/classes/renderer.php: call to block_mootivated_renderer->wallet()
line 106 of /blocks/mootivated/block_mootivated.php: call to block_mootivated_renderer->main_block_content()
line 321 of /blocks/moodleblock.class.php: call to block_mootivated->get_content()
line 230 of /blocks/moodleblock.class.php: call to block_base->formatted_contents()
line 1181 of /lib/blocklib.php: call to block_base->get_content_for_output()
line 1233 of /lib/blocklib.php: call to block_manager->create_block_contents()
line 374 of /lib/blocklib.php: call to block_manager->ensure_content_created()
line 3909 of /lib/outputrenderers.php: call to block_manager->region_has_content()
line 28 of /theme/classic/layout/columns.php: call to core_renderer->blocks()
line 1370 of /lib/outputrenderers.php: call to include()
line 1300 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()
line 244 of /course/view.php: call to core_renderer->header()