Vibrations Gone On Oppo Smart Phone After Update, Please Fix ASAP

I require your assistance with an issue I am encountering on my device, recently updated my device and noticed that the vibrations have disappeared. I experienced the same issue after the recent update, and  might be a recurring problem with future updates as well, the vibration issue is important, can't keep the phone on sound all the time...The cause of the issue is unclear, but it is possible that it may be related to recent updates, I would appreciate it if you could assist me in resolving the issue, I am pretty sure there are a lot of people out there dealing with the same problem...Can't be just me beacuse it was working before, now it's not vibrating.