Thread:Extension talk:DocxConverter/problems with extension

I am using mediawiki 1.19. and trying to use this extension. DB Table has been created, but when calling special pages I already get follwing error message:

Strict Standards: Declaration of DocxConverter::execute should be compatible with that of SpecialPage::execute in C:\xampp\htdocs\toolbox\extensions\DocxConverter\DocxConverter.php on line 471

Strict Standards: Declaration of DocxForm::getActionURL should be compatible with that of EditPage::getActionURL in C:\xampp\htdocs\toolbox\extensions\DocxConverter\DocxForm.php on line 3

Further, wehn calling page Special:DocxConverter

Strict Standards: Declaration of DocxForm::getActionURL should be compatible with that of EditPage::getActionURL in C:\xampp\htdocs\toolbox\extensions\DocxConverter\DocxForm.php on line 3

Strict Standards: Declaration of DocxConverter::execute should be compatible with that of SpecialPage::execute in C:\xampp\htdocs\toolbox\extensions\DocxConverter\DocxConverter.php on line 10

uploading of DOCX files seem to work, but when trying to edit it:

Strict Standards: Declaration of DocxForm::getActionURL should be compatible with that of EditPage::getActionURL in C:\xampp\htdocs\toolbox\extensions\DocxConverter\DocxForm.php on line 3

Strict Standards: Declaration of DocxConverter::execute should be compatible with that of SpecialPage::execute in C:\xampp\htdocs\toolbox\extensions\DocxConverter\DocxConverter.php on line 10

Catchable fatal error: Argument 2 passed to MediaWiki::articleFromTitle must implement interface IContextSource, none given, called in C:\xampp\htdocs\toolbox\extensions\DocxConverter\DocxConverter.php on line 90 and defined in C:\xampp\htdocs\toolbox\includes\Wiki.php on line 303

Can you help me?