Illegal string offset ‘edit_posts_role_permissions’

Hello,
i have error appeared in query monitor
warinig
Illegal string offset ‘edit_posts_role_permissions’

wp-content/plugins/wpfront-user-role-editor-personal-pro/includes/ppro/extended-permissions/class-extend-post-type.php:168
WPFront\U\P\E\WPFront_User_Role_Editor_Extend_Post_Type->set_cap()
wp-content/plugins/wpfront-user-role-editor-personal-pro/includes/ppro/extended-permissions/class-extend-post-type.php:113
WPFront\U\P\E\WPFront_User_Role_Editor_Extend_Post_Type->__construct()
wp-content/plugins/wpfront-user-role-editor-personal-pro/includes/ppro/extended-permissions/class-post-type-extended-permissions-pro.php:181
WPFront\U\P\E\WPFront_User_Role_Editor_Post_Type_Extended_Permissions_Pro->register()
wp-content/plugins/wpfront-user-role-editor-personal-pro/includes/ppro/extended-permissions/class-post-type-extended-permissions-pro.php:160
WPFront\U\P\E\WPFront_User_Role_Editor_Post_Type_Extended_Permissions_Pro->register_extend()
wp-includes/class-wp-hook.php:303
do_action('registered_post_type')
wp-includes/post.php:1539
register_post_type()
wp-includes/post.php:41
create_initial_post_types()
wp-includes/class-wp-hook.php:303
do_action('init')
wp-settings.php:578

and after investigation, i have found that this option in “extended_permissions_role_permissions_processed_capabilities”
is saved wrongly with value “10k”
need help to know why this issue happened
Best Regards