unblunder
(1) the process of fixing a blooper, boner, boo-boo, bungle, error, fault, faux pas, flub-up, gaff, goof, howler, impropriety, indiscretion, lapse, muff, oversight, slip-up, or trip (2) to unmake a mistake resulting from stupidity, ignorance, or mental confusion
He always makes mistakes, there's no way he'll be able to unblunder his way through this.