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I installed and updated Jetpack. The site now renders when I go to the URL. However, I can’t get to the dashboard. Whenever I get to any of the Active or Staged pages and then try to navigate to the Dashboard or click on Configure or Edit, the newly rendered page says:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

 

Also the Home page says: Jetpack’s Carousel has been disabled, because another plugin or your theme is overriding the[gallery]

shortcode.