Trying to fix a broken site that was built in c5 8.4.2

Installing on a new server, I get this:

Unable to install database: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"?.

Trace:
#0 /var/www/html/c5/concrete/src/Package/StartingPointPackage.php(181): Concrete\Core\Package\StartingPointPackage->install_database() #1 /var/www/html/c5/concrete/controllers/install.php(397): Concrete\Core\Package\StartingPointPackage->executeInstallRoutine('install_databas...') #2 [internal function]: Concrete\Controller\Install->run_routine('elemental_blank', 'install_databas...') #3 /var/www/html/c5/concrete/src/Controller/AbstractController.php(294): call_user_func_array(Array, Array) #4 /var/www/html/c5/concrete/src/Routing/ControllerRouteCallback.php(27): Concrete\Core\Controller\AbstractController->runAction('run_routine', Array) #5 /var/www/html/c5/concrete/src/Routing/Router.php(149): Concrete\Core\Routing\ControllerRouteCallback->execute(Object(Concrete\Core\Http\Request), Object(Concrete\Core\Routing\Route), Array) #6 /var/www/html/c5/concrete/src/Http/DefaultDispatcher.php(121): Concrete\Core\Routing\Router->execute(Object(Concrete\Core\Routing\Route), Array) #7 /var/www/html/c5/concrete/src/Http/DefaultDispatcher.php(57): Concrete\Core\Http\DefaultDispatcher->handleDispatch(Object(Concrete\Core\Http\Request)) #8 /var/www/html/c5/concrete/src/Http/Middleware/DispatcherDelegate.php(39): Concrete\Core\Http\DefaultDispatcher->dispatch(Object(Concrete\Core\Http\Request)) #9 /var/www/html/c5/concrete/src/Http/Middleware/ThumbnailMiddleware.php(71): Concrete\Core\Http\Middleware\DispatcherDelegate->next(Object(Concrete\Core\Http\Request)) #10 /var/www/html/c5/concrete/src/Http/Middleware/MiddlewareDelegate.php(38): Concrete\Core\Http\Middleware\ThumbnailMiddleware->process(Object(Concrete\Core\Http\Request), Object(Concrete\Core\Http\Middleware\DispatcherDelegate)) #11 /var/www/html/c5/concrete/src/Http/Middleware/FrameOptionsMiddleware.php(39): Concrete\Core\Http\Middleware\MiddlewareDelegate->next(Object(Concrete\Core\Http\Request)) #12 /var/www/html/c5/concrete/src/Http/Middleware/MiddlewareDelegate.php(38): Concrete\Core\Http\Middleware\FrameOptionsMiddleware->process(Object(Concrete\Core\Http\Request), Object(Concrete\Core\Http\Middleware\MiddlewareDelegate)) #13 /var/www/html/c5/concrete/src/Http/Middleware/CookieMiddleware.php(37): Concrete\Core\Http\Middleware\MiddlewareDelegate->next(Object(Concrete\Core\Http\Request)) #14 /var/www/html/c5/concrete/src/Http/Middleware/MiddlewareDelegate.php(38): Concrete\Core\Http\Middleware\CookieMiddleware->process(Object(Concrete\Core\Http\Request), Object(Concrete\Core\Http\Middleware\MiddlewareDelegate)) #15 /var/www/html/c5/concrete/src/Http/Middleware/ApplicationMiddleware.php(29): Concrete\Core\Http\Middleware\MiddlewareDelegate->next(Object(Concrete\Core\Http\Request)) #16 /var/www/html/c5/concrete/src/Http/Middleware/MiddlewareDelegate.php(38): Concrete\Core\Http\Middleware\ApplicationMiddleware->process(Object(Concrete\Core\Http\Request), Object(Concrete\Core\Http\Middleware\MiddlewareDelegate)) #17 /var/www/html/c5/concrete/src/Http/Middleware/MiddlewareStack.php(86): Concrete\Core\Http\Middleware\MiddlewareDelegate->next(Object(Concrete\Core\Http\Request)) #18 /var/www/html/c5/concrete/src/Http/DefaultServer.php(85): Concrete\Core\Http\Middleware\MiddlewareStack->process(Object(Concrete\Core\Http\Request)) #19 /var/www/html/c5/concrete/src/Foundation/Runtime/Run/DefaultRunner.php(119): Concrete\Core\Http\DefaultServer->handleRequest(Object(Concrete\Core\Http\Request)) #20 /var/www/html/c5/concrete/src/Foundation/Runtime/DefaultRuntime.php(102): Concrete\Core\Foundation\Runtime\Run\DefaultRunner->run() #21 /var/www/html/c5/concrete/dispatcher.php(36): Concrete\Core\Foundation\Runtime\DefaultRuntime->run() #22 /var/www/html/c5/index.php(3): require('/var/www/html/c...') #23 {main}
An error occurred.

What should I do about that??