Exception: Entity not found!

#0 /var/www/vhosts/rockonruby.co.uk/htdocs/app/code/FishPig/WordPress/Controller/Action.php(74): FishPig\WordPress\Controller\Action->_beforeExecute()
#1 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/App/Action/Action.php(107): FishPig\WordPress\Controller\Action->execute()
#2 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\App\Action\Action->dispatch(Object(Magento\Framework\App\Request\Http))
#3 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/Interception/Interceptor.php(138): FishPig\WordPress\Controller\User\View\Interceptor->___callParent('dispatch', Array)
#4 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/Interception/Interceptor.php(153): FishPig\WordPress\Controller\User\View\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http))
#5 /var/www/vhosts/rockonruby.co.uk/htdocs/generated/code/FishPig/WordPress/Controller/User/View/Interceptor.php(26): FishPig\WordPress\Controller\User\View\Interceptor->___callPlugins('dispatch', Array, Array)
#6 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/App/FrontController.php(55): FishPig\WordPress\Controller\User\View\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#7 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\App\FrontController->dispatch(Object(Magento\Framework\App\Request\Http))
#8 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\App\FrontController\Interceptor->___callParent('dispatch', Array)
#9 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/module-store/App/FrontController/Plugin/RequestPreprocessor.php(94): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http))
#10 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/Interception/Interceptor.php(135): Magento\Store\App\FrontController\Plugin\RequestPreprocessor->aroundDispatch(Object(Magento\Framework\App\FrontController\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#11 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/module-page-cache/Model/App/FrontController/BuiltinPlugin.php(69): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http))
#12 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/Interception/Interceptor.php(135): Magento\PageCache\Model\App\FrontController\BuiltinPlugin->aroundDispatch(Object(Magento\Framework\App\FrontController\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#13 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http))
#14 /var/www/vhosts/rockonruby.co.uk/htdocs/generated/code/Magento/Framework/App/FrontController/Interceptor.php(26): Magento\Framework\App\FrontController\Interceptor->___callPlugins('dispatch', Array, NULL)
#15 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/App/Http.php(136): Magento\Framework\App\FrontController\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#16 /var/www/vhosts/rockonruby.co.uk/htdocs/generated/code/Magento/Framework/App/Http/Interceptor.php(24): Magento\Framework\App\Http->launch()
#17 /var/www/vhosts/rockonruby.co.uk/htdocs/vendor/magento/framework/App/Bootstrap.php(257): Magento\Framework\App\Http\Interceptor->launch()
#18 /var/www/vhosts/rockonruby.co.uk/htdocs/pub/index.php(37): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor))
#19 {main}