Warning: Use of undefined constant self - assumed 'self' (this will throw an Error in a future version of PHP) in system/modules/_autoload/NamespaceClassLoader.php on line 86
#0 system/modules/_autoload/NamespaceClassLoader.php(86): __error(2, 'Use of undefine...', '/www/htdocs/w01...', 86, Array)
#1 system/modules/_autoload/NamespaceClassLoader.php(74): NamespaceClassLoader::addContaoRoot(Array)
#2 system/modules/notification_center/config/autoload.php(40): NamespaceClassLoader::addClassMap(Array)
#3 system/modules/core/library/Contao/ClassLoader.php(222): include('/www/htdocs/w01...')
#4 system/initialize.php(99): Contao\ClassLoader::scanAndRegister()
#5 index.php(24): require('/www/htdocs/w01...')
#6 {main}

Warning: session_set_cookie_params(): Cannot change session cookie parameters when headers already sent in system/initialize.php on line 139
#0 [internal function]: __error(2, 'session_set_coo...', '/www/htdocs/w01...', 139, Array)
#1 system/initialize.php(139): session_set_cookie_params(0, '/')
#2 index.php(24): require('/www/htdocs/w01...')
#3 {main}

Warning: session_start(): Cannot start session when headers already sent in system/initialize.php on line 140
#0 [internal function]: __error(2, 'session_start()...', '/www/htdocs/w01...', 140, Array)
#1 system/initialize.php(140): session_start()
#2 index.php(24): require('/www/htdocs/w01...')
#3 {main}