Help needed -my zoom (desktop) won't update

Have been using zoom on my laptop for a long time ... usually Zoom updates run automatically or I get a notice asking me if I want to update.

Starting  Monday, 2/6, when I tried to login I received this message:  'Your app version needs to be 5.10.3 or higher.  Please contact your IT team to update your app'.

I tried to update by going through 'my account' tab but there is no option there for updates.

I've never had an "IT Team" or other ... just a personal user.

I tried to update to current version starting in zoom's download center and it showed that the download ran but the program would not update ...  when I opened zoom it still gave me the message.

Appreciate assistance ... we use Zoom to attend my mom's therapy (dementia) sessions and classes!