accounts.lastlogin/logtime had no defaults and were NOT NULL, but the auto-create-account INSERT never set them, so new accounts failed under MariaDB strict mode (silently accepted under the old MySQL 5.0 target). Insert explicit empty/zero values and give lastlogin a default; also widen it to varchar(32) to match the runtime.sql fix already applied to the starttime column. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>