Crontab does not work properly
The error message you see already tries to explain what's wrong. As you specified -t to the exec command, it tries to allocate a TTY. When run from cron, there is no pseudo-TTY available and thus it fails.
Try to change your script to this:
#!/bin/bash/usr/bin/docker restart container_name 2>/dev/null/usr/bin/docker exec -i container_name /path/launcher.sh 2>/dev/nullFYI: There are a lot of questions regarding cron and TTY here. For example, this one explains the problem pretty well: "stdin: is not a tty" from cronjob