The IDL for program 6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P is published and I'm guessing it's pump.fun
The error you are encountering is telling you that the coin no longer exists on pump.fun because the $69k market cap has been reached and the liquidity has been moved to Raydium and burned.