Update fxblox-app.md

docs/functionyard/fxblox-app.md

@@ -21,8 +21,8 @@ If adding more than one FxBlox to your app, get familiar with [these instruction
 For a successful setup you should either have the Blox with internal storage, or attach an external storage to it.
 ::: 
 
-:::info 
-Please make sure you first uninstall (not update) any previous version of FxBlox on your phone and then re-install the latest version
+:::warning 
+Please make sure to first uninstall (not update) any previous version of FxBlox on your phone and then re-install the latest version
 ::: 
 
 1. Open Metamask Wallet. We recommend having the opening network set to "Ethereum Mainnet" for a smoother setup process.