Der phpFreeChat an Contao anbinden?

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Hallo Forum,

ich versuche schon seit paar Wochen der phpFreeChat an Contao anzubinden, aber bekommen immer der gleiche Fehler für unterschiedliche Funktionen. Am Debian und WindowsXP ausprobiert...

Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\phpfreechat.class.php on line 44
Strict Standards: Non-static method pfcI18N::Init() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcglobalconfig.class.php on line 648
Strict Standards: Non-static method pfcI18N::GetAcceptedLanguage() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfci18n.class.php on line 59
Strict Standards: Non-static method pfcI18N::GetDefaultLanguage() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfci18n.class.php on line 60
Strict Standards: Non-static method pfcContainer::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcglobalconfig.class.php on line 737
Strict Standards: Non-static method pfcUserConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\phpfreechat.class.php on line 47
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 21
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 58
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 69
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 58
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 69
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 58
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 69
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 58
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 69
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 58
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\pfcuserconfig.class.php on line 69
Strict Standards: Non-static method pfcGlobalConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\phpfreechat.class.php on line 99
Strict Standards: Non-static method pfcUserConfig::Instance() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\phpfreechat.class.php on line 100
Strict Standards: Non-static method pfcI18N::SwitchOutputEncoding() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\phpfreechat.class.php on line 111
Strict Standards: Non-static method pfcI18N::SwitchOutputEncoding() should not be called statically, assuming $this from incompatible context in C:\xampp\htdocs\phpfreechat\src\phpfreechat.class.php on line 119

Im ähnlichen Beitrag 4347 wird vorgeschlagen die Funktionen als public static function zu deklarieren, aber leider das hilft auch nicht weiter.

An die Installation liegt das auch nicht, weil getrennt von Contao funktioniere der phpFreeChat schon. Nur wenn ich mit dem Inserttag aufrufe, dann kommt der Fehler.

{{file::phpfreechat.php}}

Offen gestanden mit PHP habe ich noch wenig Erfahrung gesammelt, daher brauche eure Hilfe.
Kann mich jemand aufklären?

Danke.