Plugin generates PHP Notices

Plugins should generate no notices with WP_DEBUG set true.

On initial plugin page load:
Notice: Undefined variable: option in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 49
Notice: Undefined variable: wpdb in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 76
Notice: Trying to get property of non-object in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 76
Notice: Undefined variable: wpdb in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 76
Notice: Trying to get property of non-object in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 76
Notice: Undefined variable: wpdb in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 76

On exporting structure/data:
Notice: Use of undefined constant data – assumed ‘data’ in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 141
Notice: Undefined index: csv_comp_bkp in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 142
Notice: Use of undefined constant am_option – assumed ‘am_option’ in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 146
Notice: Use of undefined constant am_csv_tbl – assumed ‘am_csv_tbl’ in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 147
Notice: Use of undefined constant ex_struct – assumed ‘ex_struct’ in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 163
Notice: Use of undefined constant ex_data – assumed ‘ex_data’ in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 175
Notice: Undefined variable: output in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 148
Notice: Use of undefined constant am_saveAs_option – assumed ‘am_saveAs_option’ in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 150
Notice: Undefined index: am_saveAs_option in D:\Websites\redacted.org\rakwp\wp-content\plugins\db-backup\db-backup.php on line 150

There may be – probably are – more notices and/or errors. Please fix for your next release.

Thanks

https://wordpress.org/plugins/db-backup/