Error message

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Notice: imagejpeg(): Write of 4096 bytes failed with errno=28 No space left on device in Drupal\system\Plugin\ImageToolkit\GDToolkit->save() (line 258 of core/modules/system/src/Plugin/ImageToolkit/GDToolkit.php).

Drupal\system\Plugin\ImageToolkit\GDToolkit->save('/home/offsitedev/web/dev.offsite.com.cy/public_html/docroot/sites/default/files/styles/780x516/public/2020-04/dhmarxeio-aradippou.jpg') (Line: 125)
Drupal\Core\Image\Image->save('public://styles/780x516/public/2020-04/dhmarxeio-aradippou.jpg') (Line: 332)
Drupal\image\Entity\ImageStyle->createDerivative('public://2020-04/dhmarxeio-aradippou.jpg', 'public://styles/780x516/public/2020-04/dhmarxeio-aradippou.jpg') (Line: 215)
Drupal\image\Controller\ImageStyleDownloadController->deliver(Object, 'public', Object) (Line: 95)
Drupal\stage_file_proxy\Controller\ImageStyleDownloadController->deliver(Object, 'public', Object)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 580)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 169)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 718)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

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Warning: imagejpeg(): gd-jpeg: JPEG library reports unrecoverable error: Output file write error --- out of disk space? in Drupal\system\Plugin\ImageToolkit\GDToolkit->save() (line 258 of core/modules/system/src/Plugin/ImageToolkit/GDToolkit.php).

Drupal\system\Plugin\ImageToolkit\GDToolkit->save('/home/offsitedev/web/dev.offsite.com.cy/public_html/docroot/sites/default/files/styles/780x516/public/2020-04/dhmarxeio-aradippou.jpg') (Line: 125)
Drupal\Core\Image\Image->save('public://styles/780x516/public/2020-04/dhmarxeio-aradippou.jpg') (Line: 332)
Drupal\image\Entity\ImageStyle->createDerivative('public://2020-04/dhmarxeio-aradippou.jpg', 'public://styles/780x516/public/2020-04/dhmarxeio-aradippou.jpg') (Line: 215)
Drupal\image\Controller\ImageStyleDownloadController->deliver(Object, 'public', Object) (Line: 95)
Drupal\stage_file_proxy\Controller\ImageStyleDownloadController->deliver(Object, 'public', Object)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 580)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 169)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 718)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)