Are you sure it was downloaded in the same place? Update signatures provided by the same website should be the same.

If the same website has a different signature, click Resolve:

1. Unload the old one and directly install the new one before playing.

2. Back up the old version of data with tools such as Tai Backup under the premise of mobile phone root, and then remove the old version and install a new one.

3. Go to the root directory of the mobile phone (it's a mobile phone, not a memory card), find the game installer in the data\app folder, and replace the old one with a new one (remember to change the name to the same one).