Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, phpbb\template\twig\definition given in /home/.sites/723/site1328/web/forum_diagatherer/vendor/twig/twig/src/Template.php:607
Stack trace:
#0 /home/.sites/723/site1328/web/forum_diagatherer/cache/production/twig/c0/c088775155b8eb64626d65ae226065ec8bfcb47b71267d382d5852f80e1a4083.php(264): Twig\Template->getAttribute(Object(phpbb\template\twig\definition), 'STYLESHEETS', Array)
#1 /home/.sites/723/site1328/web/forum_diagatherer/vendor/twig/twig/src/Template.php(455): __TwigTemplate_e75917b386d7be9fa365930cb185521abcfd7001c33635022544b0ae7b78a602->doDisplay(Array, Array)
#2 /home/.sites/723/site1328/web/forum_diagatherer/vendor/twig/twig/src/Template.php(422): Twig\Template->displayWithErrorHandling(Array, Array)
#3 /home/.sites/723/site1328/web/forum_diagatherer/cache/production/twig/cd/cd5a76cfae039493a2215ce8b1a4630fabb4bed7812008529b728508e1c89f9a.php(37): Twig\Template->display(Array)
#4 /home/.sites/723/site1328/web/forum_diagatherer/vendor/twig/twig/src/Template.php(455): __TwigTemplate_bfa929e87ff15f83d1cdfb6f6df2ce5a722c3d2069af6707827ccf7cb87a8ee9->doDisplay(Array, Array)
#5 /home/.sites/723/site1328/web/forum_diagatherer/vendor/twig/twig/src/Template.php(422): Twig\Template->displayWithErrorHandling(Array, Array)
#6 /home/.sites/723/site1328/web/forum_diagatherer/vendor/twig/twig/src/Template.php(434): Twig\Template->display(Array)
#7 /home/.sites/723/site1328/web/forum_diagatherer/vendor/twig/twig/src/TemplateWrapper.php(47): Twig\Template->render(Array, Array)
#8 /home/.sites/723/site1328/web/forum_diagatherer/vendor/twig/twig/src/Environment.php(384): Twig\TemplateWrapper->render(Array)
#9 /home/.sites/723/site1328/web/forum_diagatherer/phpbb/template/twig/environment.php(224): Twig\Environment->render('viewforum_body....', Array)
#10 /home/.sites/723/site1328/web/forum_diagatherer/phpbb/template/twig/environment.php(194): phpbb\template\twig\environment->display_with_assets('viewforum_body....', Array)
#11 /home/.sites/723/site1328/web/forum_diagatherer/phpbb/template/twig/twig.php(317): phpbb\template\twig\environment->display('viewforum_body....', Array)
#12 /home/.sites/723/site1328/web/forum_diagatherer/includes/functions.php(4613): phpbb\template\twig\twig->display('body')
#13 /home/.sites/723/site1328/web/forum_diagatherer/viewforum.php(194): page_footer()
#14 {main}
  thrown in /home/.sites/723/site1328/web/forum_diagatherer/vendor/twig/twig/src/Template.php on line 607