do you know why I would get this error?

#garnet (v0.3.0) released with new features, improvements and bug fixes
Note: If you added (v0.3.0) to Obtanium. Delete that entry and re-add it for proper updates moving forward.
https://github.com/retrnull/garnet/releases
https://i.nostr.build/8mYdiYMx77BgFDFL.jp
#Amethyst #Monero
do you know why I would get this error?

Can you walk me through the steps you did to try and install it? Are you on stock Android or Graphene? Did you download the mainnet or stagenet apk? Are you installing the latest version (v0.3.0)?
Do you already have Amethyst installed? There was an issue before where garnet could not be installed alongside Amethyst without using something like apk editor. Not sure if that's been fixed in (v0.3.0)