role capabilities suddenly lost

Hi,
I’ve experienced the following issue twice in a few months on 2 different WP websites.

ISSUE : After logged in I’m redirected to the front page, with no way to access the WP dashboard

CAUSE : the option_name : « wp_user_roles » of the wp_options table was broken.
Its content was :
a:3:{s:14:”backwpup_admin”;a:2:{s:4:”name”;s:23:”Administration BackWPup”;s:12:”capabilities”;a:12:{s:4:”read”;b:1;s:8:”backwpup”;b:1;s:13:”backwpup_jobs”;b:1;s:18:”backwpup_jobs_edit”;b:1;s:19:”backwpup_jobs_start”;b:1;s:16:”backwpup_backups”;b:1;s:25:”backwpup_backups_download”;b:1;s:23:”backwpup_backups_delete”;b:1;s:13:”backwpup_logs”;b:1;s:20:”backwpup_logs_delete”;b:1;s:17:”backwpup_settings”;b:1;s:16:”backwpup_restore”;b:1;}}s:14:”backwpup_check”;a:2:{s:4:”name”;s:34:”Vérification des tâches BackWPup”;s:12:”capabilities”;a:12:{s:4:”read”;b:1;s:8:”backwpup”;b:1;s:13:”backwpup_jobs”;b:1;s:18:”backwpup_jobs_edit”;b:0;s:19:”backwpup_jobs_start”;b:0;s:16:”backwpup_backups”;b:1;s:25:”backwpup_backups_download”;b:0;s:23:”backwpup_backups_delete”;b:0;s:13:”backwpup_logs”;b:1;s:20:”backwpup_logs_delete”;b:0;s:17:”backwpup_settings”;b:0;s:16:”backwpup_restore”;b:0;}}s:15:”backwpup_helper”;a:2:{s:4:”name”;s:29:”Aide sur les tâches BackWPup”;s:12:”capabilities”;a:12:{s:4:”read”;b:1;s:8:”backwpup”;b:1;s:13:”backwpup_jobs”;b:1;s:18:”backwpup_jobs_edit”;b:0;s:19:”backwpup_jobs_start”;b:1;s:16:”backwpup_backups”;b:1;s:25:”backwpup_backups_download”;b:1;s:23:”backwpup_backups_delete”;b:1;s:13:”backwpup_logs”;b:1;s:20:”backwpup_logs_delete”;b:1;s:17:”backwpup_settings”;b:0;s:16:”backwpup_restore”;b:0;}}}

Each time the content was filled with backwpup info, any idea where it comes from and if backwpup is involved in this bug ?

I fixed this issue thanks to this post :
https://www.awebvision.fr/restaurer-les-roles-permissions-defaut-wordpress/