don't run the environment loader twice wii u

[creditor95]

Hello. Help me please. I tried to install a teramisu. I made a backup. I decided to install the exploit, but forgot to insert the SD card. I had to restart the console, otherwise it would not respond to anything. I started trying to install the exploit again, but now the following error appears: don't run the environment loader twice wii u. I don't know what to do now. It turns out there is no firmware and I can’t install it. Pressing the + and X buttons when loading does not help.