Unhandled Exception: No block-level parent found. Not good.

In file: /home/kalistom/public_html/vendor/dompdf/include/inline_positioner.cls.php
At line: 38
[538]: 
[539]: case "upper-greek":
[540]: return unichr($value + 912);
[541]: }
[542]: }
[543]:
[544]: //........................................................................
[545]:
[545]: final function position() { $this->_positioner->position(); }
[547]:
[548]: final function move($offset_x, $offset_y, $ignore_self = false) {
[549]: $this->_positioner->move($offset_x, $offset_y, $ignore_self);
[550]: }
[551]:
[552]: final function reflow(Frame_Decorator $block = null) {
[553]: // Uncomment this to see the frames before they're laid out, instead of
[554]: // during rendering.

Backtrace:
#0: Inline_Positioner->position( ) in /home/kalistom/public_html/vendor/dompdf/include/frame_decorator.cls.php at 546
#1: Frame_Decorator->position( ) in /home/kalistom/public_html/vendor/dompdf/include/text_frame_reflower.cls.php at 331
#2: Text_Frame_Reflower->reflow( unknown value (NULL) ) in /home/kalistom/public_html/vendor/dompdf/include/frame_decorator.cls.php at 556
#3: Frame_Decorator->reflow( ) in /home/kalistom/public_html/vendor/dompdf/include/page_frame_reflower.cls.php at 138
#4: Page_Frame_Reflower->reflow( unknown value (NULL) ) in /home/kalistom/public_html/vendor/dompdf/include/frame_decorator.cls.php at 556
#5: Frame_Decorator->reflow( ) in /home/kalistom/public_html/vendor/dompdf/include/dompdf.cls.php at 817
#6: DOMPDF->render( ) in /home/kalistom/public_html/nff/behaviors/xmlapi.php at 99
#7: Behaviors_Xmlapi->exportPDF( "

Oбект № Pahner 2, Munchen, Germany

Pahner, Munchen, Germany

"
(string) ) in /home/kalistom/public_html/modules/building/frontend.php at 178
#8: Building_Frontend->actionRenderBuildingDownload( Events_Event (object) ) in unknown at 0
#9: call_user_func_array( [#2] (array), [#1] (array) ) in /home/kalistom/public_html/nff/behaviors/xmlapi.php at 122
#10: Behaviors_Xmlapi->__call( "onActionRenderBuildingDownload" (string), [#1] (array) ) in /home/kalistom/public_html/nff/events/eventdispatcher.php at 133
#11: Building_Frontend->onActionRenderBuildingDownload( Events_Event (object) ) in /home/kalistom/public_html/nff/events/eventdispatcher.php at 133
#12: Events_EventDispatcher->_dispatch( Events_Event (object), Events_Listener (object) ) in /home/kalistom/public_html/nff/events/eventdispatcher.php at 92
#13: Events_EventDispatcher->dispatch( Events_Event (object) ) in /home/kalistom/public_html/nff/core/urirule.php at 260
#14: urirule->Trigger( "/buildings/52/download.html" (string), Events_Event (object) ) in /home/kalistom/public_html/modules/pages/controller.php at 871
#15: Pages_Controller->dispatch( "/buildings/52/download.html" (string), Events_Event (object) ) in /home/kalistom/public_html/modules/pages/controller.php at 850
#16: Pages_Controller->proccessModules( Events_Event (object) ) in /home/kalistom/public_html/modules/pages/controller.php at 739
#17: Pages_Controller->onProccess( Events_Event (object) ) in /home/kalistom/public_html/nff/events/eventdispatcher.php at 133
#18: Events_EventDispatcher->_dispatch( Events_Event (object), Events_Listener (object) ) in /home/kalistom/public_html/nff/events/eventdispatcher.php at 92
#19: Events_EventDispatcher->dispatch( Events_Event (object) ) in /home/kalistom/public_html/modules/frontend/controller.php at 95
#20: Frontend_Controller->handle( unknown value (NULL) ) in /home/kalistom/public_html/modules/frontend/controller.php at 49
#21: Frontend_Controller->onFrontendRequest( unknown value (NULL) ) in /home/kalistom/public_html/nff/events/eventdispatcher.php at 133
#22: Events_EventDispatcher->_dispatch( unknown value (NULL), Events_Listener (object) ) in /home/kalistom/public_html/nff/events/eventdispatcher.php at 92
#23: Events_EventDispatcher->dispatch( unknown value (NULL) ) in /home/kalistom/public_html/nff/core/urirule.php at 260
#24: urirule->Trigger( "/de/buildings/52/download.html" (string) ) in /home/kalistom/public_html/nff/core/uridispatch.php at 60
#25: uridispatch->ParseAndDispatch( Events_Event (object) ) in /home/kalistom/public_html/nff/events/eventdispatcher.php at 133
#26: Events_EventDispatcher->_dispatch( Events_Event (object), Events_Listener (object) ) in /home/kalistom/public_html/nff/events/eventdispatcher.php at 92
#27: Events_EventDispatcher->dispatch( Events_Event (object) ) in /home/kalistom/public_html/nff/core/app.php at 85
#28: App->run( ) in /home/kalistom/public_html/nff/core/nff.php at 60
#29: NFF::run( ) in /home/kalistom/public_html/index.php at 30