Fatal error: Call to a member function getLang() on a non-object in /var/www/chemiewerkt/system/ext/I18N/Translation2AdminWrapper.php on line 74

Call Stack:
    0.0004     150224   1. {main}() /var/www/chemiewerkt/index.php:0
    0.0117     618388   2. SJB_System::init() /var/www/chemiewerkt/index.php:58
    0.0768    3802924   3. SJB_ModuleManager->executeModulesStartupFunctions() /var/www/chemiewerkt/system/core/System.php:242
    0.0783    3844860   4. ThemeManager::getCurrentTheme() /var/www/chemiewerkt/system/core/ModuleManager.php:351
    0.0996    4851640   5. SJB_I18N->switchLang() /var/www/chemiewerkt/system/core/TemplateSupplier.php:271
    0.0996    4851664   6. I18NSwitchLanguageAgent->execute() /var/www/chemiewerkt/system/core/I18N.php:100
    0.0996    4851760   7. I18NSwitchLanguageAgent->fetchExistLanguage() /var/www/chemiewerkt/system/ext/I18N/I18NSwitchLanguageAgent.php:52
    0.0996    4852232   8. SJB_I18N->languageExists() /var/www/chemiewerkt/system/ext/I18N/I18NSwitchLanguageAgent.php:77
    0.0999    4856904   9. SJB_LanguageExistsValidator->isValid() /var/www/chemiewerkt/system/core/I18N.php:539
    0.0999    4856972  10. I18NDataSource->getLanguagesData() /var/www/chemiewerkt/system/lib/Validation/LanguageExistsValidator.php:35
    0.0999    4856996  11. I18NLanguageDataSource->getLanguagesData() /var/www/chemiewerkt/system/ext/I18N/I18NDatasource.php:158
    0.0999    4857132  12. Translation2AdminWrapper->getLangs() /var/www/chemiewerkt/system/ext/I18N/I18NLanguageDataSource.php:75
    0.1767    5414728  13. Translation2AdminWrapper->getLang() /var/www/chemiewerkt/system/ext/I18N/Translation2AdminWrapper.php:90