The company decided to overlook past mistakes and give him another chance.
Tips
history
From 《论语·八佾》: 成事不说,遂事不谏,既往不咎 — 'don't speak of what's done, don't remonstrate over what's settled, don't blame what's past.' Confucius's counsel against dwelling on the irreversible.
memory
咎 = blame; 既往 = the already-passed. Literally 'not-blame what's already past'. Often appears in the original word order 既往不咎 with the same meaning.