fix buyer permission check for invoice view

Author: zefir-git

src/main/java/pro/cloudnode/smp/bankaccounts/commands/InvoiceCommand.java

@@ -193,7 +193,7 @@ public static boolean details(final @NotNull CommandSender sender, @NotNull Stri
         final @NotNull Optional<@NotNull Invoice> invoice = Invoice.get(args[0]);
         if (invoice.isEmpty()) return sendMessage(sender, BankAccounts.getInstance().config().messagesErrorsInvoiceNotFound());
         if (!sender.hasPermission(Permissions.INVOICE_VIEW_OTHER)
-                && invoice.get().buyer().map(b -> b.getUniqueId().equals(BankAccounts.getOfflinePlayer(sender).getUniqueId())).orElse(true)
+                && !invoice.get().buyer().map(b -> b.getUniqueId().equals(BankAccounts.getOfflinePlayer(sender).getUniqueId())).orElse(true)
                 && !invoice.get().seller.owner.getUniqueId().equals(BankAccounts.getOfflinePlayer(sender).getUniqueId())
         ) return sendMessage(sender, BankAccounts.getInstance().config().messagesErrorsInvoiceNotFound());