Warning: file_get_contents(): php_network_getaddresses: getaddrinfo failed: Name or service not known in templates/theme/evento_impressum.php on line 4

#0 [internal function]: __error(2, 'file_get_conten...', '/var/customers/...', 4, Array)
#1 templates/theme/evento_impressum.php(4): file_get_contents('http://api.even...')
#2 system/modules/core/library/Contao/Controller.php(1686): include('/var/customers/...')
#3 system/modules/core/classes/FrontendTemplate.php(154): Contao\Controller->replaceInsertTags('...', false)
#4 system/modules/core/pages/PageRegular.php(183): Contao\FrontendTemplate->output(true)
#5 index.php(253): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#6 index.php(437): Index->run()
#7 {main}

Warning: file_get_contents(http://api.eventomaxx.de/impressum.php): failed to open stream: php_network_getaddresses: getaddrinfo failed: Name or service not known in templates/theme/evento_impressum.php on line 4

#0 [internal function]: __error(2, 'file_get_conten...', '/var/customers/...', 4, Array)
#1 templates/theme/evento_impressum.php(4): file_get_contents('http://api.even...')
#2 system/modules/core/library/Contao/Controller.php(1686): include('/var/customers/...')
#3 system/modules/core/classes/FrontendTemplate.php(154): Contao\Controller->replaceInsertTags('...', false)
#4 system/modules/core/pages/PageRegular.php(183): Contao\FrontendTemplate->output(true)
#5 index.php(253): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#6 index.php(437): Index->run()
#7 {main}