Fix account index.

src/app/_eth/accountIndex.ts

@@ -34,7 +34,7 @@ export class AccountIndex {
       lowest = 0;
     }
     const accounts: Array<string> = [];
-    for (let i = count; i > lowest; i--) {
+    for (let i = count - 1; i >= lowest; i--) {
       const account: string = await this.contract.methods.entry(i).call();
       accounts.push(account);
     }