Deprecated: Joomla\Input\Input implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /homepages/43/d19589455/htdocs/Seiten/Harzerstatik/libraries/vendor/joomla/input/src/Input.php on line 41

Deprecated: Return type of Joomla\Input\Input::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /homepages/43/d19589455/htdocs/Seiten/Harzerstatik/libraries/vendor/joomla/input/src/Input.php on line 170

Deprecated: Joomla\CMS\Input\Input implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /homepages/43/d19589455/htdocs/Seiten/Harzerstatik/libraries/src/Input/Input.php on line 31

Deprecated: Joomla\CMS\Input\Cookie implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /homepages/43/d19589455/htdocs/Seiten/Harzerstatik/libraries/src/Input/Cookie.php on line 21
Error: Failed to start application: Failed to start the session because headers have already been sent by "/homepages/43/d19589455/htdocs/Seiten/Harzerstatik/libraries/vendor/joomla/input/src/Input.php" at line 41.