Roller Text in Joomla 3.5 - por: Kinder

Roller text is working but on top it shows the error message:
Strict Standards: Only variables should be assigned by reference in /home/.../domains/.../public_html/.../modules/mod_rollertext/mod_rollertext.php on line 40 Strict Standards: Only variables should be assigned by reference in/home/.../domains/.../public_html/.../modules/mod_rollertext/mod_rollertext.php on line 42 Strict Standards: Non-static method modRollerTextHelper::contidoArtigo() should not be called statically in /home/.../domains/.../public_html/.../modules/mod_rollertext/mod_rollertext.php on line 62 Strict Standards: Only variables should be assigned by reference in /home/.../domains/.../public_html/.../modules/mod_rollertext/mod_rollertext.php on line 31

How do I get rid of?