Warning: Undefined variable $routes in /htdocs/isograd_ts/src/view/page/ts.page.class.php on line 283

Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given in /htdocs/isograd_ts/src/view/page/ts.page.class.php:280 Stack trace: #0 /htdocs/isograd_ts/src/view/page/ts.page.class.php(280): array_map(Object(Closure), NULL) #1 /htdocs/isograd_ts/src/view/page/ts.page.class.php(211): TsPage->getAlternates() #2 /htdocs/isograd_ts/src/view/page/ts.page.class.php(126): TsPage->getHeadData() #3 /usr/share/php/TOSA/view/interface/page.class.php(27): TsPage->getHTMLHeadManager() #4 /htdocs/isograd_ts/src/view/page/ts.page.class.php(32): Page->__construct(2) #5 /htdocs/isograd_ts/src/newitsrouter.class.php(95): TsPage->__construct(2) #6 /htdocs/isograd_ts/public/index.php(11): NewITSRouter::show404() #7 {main} thrown in /htdocs/isograd_ts/src/view/page/ts.page.class.php on line 280