Error: indication of all reviews as 0/0 reviewers

Describe the issue or problem
Yesterday, when we accessed OJS, all the submissions had 0/0 reviewers (when in reality all the submissions had designated reviewers and some had completed reviews). It was as if everything had been sent to a new round, but there was no indication in the history. Today, when we logged in, everything looked normal, but we’re worried it might be a major error. Has this happened to anyone?

What application are you using?
OJS 3.3.0.10