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Error while accessing admin section

I am facing the following error while trying to access Admin section in Drupal 8 (WAMP Server). I tried to install the Update manager module and from then I am facing this error. I am unable to access any Admin section of the website. But, I am able to login and access the User account section (Ex: http/test.com/user/1).

The website encountered an unexpected error. Please try again later.

SymfonyComponentRoutingExceptionRouteNotFoundException: Route “update.report_update” does not exist. in DrupalCoreRoutingRouteProvider->getRouteByName() (line 191 of corelibDrupalCoreRoutingRouteProvider.php).

Any suggestion please?

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Error while accessing admin section

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