Bridgette Kling

I have a plan that only has 3 participants and only the owner salary defers. During 2020 and part of 2021 there was a mess up at the payroll company and the salary deferrals were not deposited into the 401(k) account at all. The deferrals were withheld from each payroll just not deposited. If this only effects the owner is it necessary for him to pay lost earnings to himself and then is it further necessary to file a 5330 for him to pay penalties for himself?