Tried resolving a template file for controller action "Page->BTW_2017/575000_000036/Index.html" in format ".html", but none of the paths contained the expected template file (Page/BTW_2017/575000_000036/Index.html.html). The following paths were checked: /var/www/vhosts/wahlen.kreis-nea.de/httpdocs/wahlviewer/Resources/Private/Templates/
Debug
TYPO3Fluid\Fluid\View\Exception\InvalidTemplateResourceExceptionprototypeobject
   message => protected'Tried resolving a template file for controller action "Page->BTW_2017/575000
      _000036/Index.html" in format ".html", but none of the paths contained the e
      xpected template file (Page/BTW_2017/575000_000036/Index.html.html). The fol
      lowing paths were checked: /var/www/vhosts/wahlen.kreis-nea.de/httpdocs/wahl
      viewer/Resources/Private/Templates/
' (339 chars) code => protected1257246929 (integer) file => protected'/var/www/vhosts/wahlen.kreis-nea.de/httpdocs/wahlviewer/vendor/typo3fluid/fl
      uid/src/View/TemplatePaths.php
' (106 chars) line => protected598 (integer)