There's Something Wrong with My Immortality

A catastrophic accident led to the destruction of the sect, and only a few people managed to escape. Xie Yunzhu was one of them. He fled with the Immortal Fate left by his master and his junior sister's apprentice. After he could settle down for a while, he discovered that there was something wrong with the Immortal Fate left by his master. What is it that Xianyuan actually has a check-in system and a task panel? And why is the reward column all gray and unavailable? !