Call history not showing on Phone pad

[BillTango]

We recently installed the latest Zoom upgrade concerning Oauth changes into our Salesforce FinanciaL Services Application. Now the Call history is no longer showing in the Phone pad as it used to. The history is being logged in salesforce correctly but when the History buton in the phone pad is pucjhed no history is displayed. Anyone have a solution or path to a solution so the histopry is displayed as it used to.