error log dosyam çok artıyor. içine baktım neredeyse hepsi com_sef ile alakalı

hatalardan bazıları : 14-Apr-2015 11:54:30 Europe/Istanbul] PHP Strict Standards: Non-static method SEFConfig::getConfig() should not be called statically, assuming $this from incompatible context in /home/pyazilis/public_html/plugins/system/joomsef/joomsef.php on line 239
[14-Apr-2015 11:54:30 Europe/Istanbul] PHP Strict Standards: Non-static method JoomSEF::set() should not be called statically, assuming $this from incompatible context in /home/pyazilis/public_html/plugins/system/joomsef/joomsef.php on line 63
[14-Apr-2015 11:54:30 Europe/Istanbul] PHP Strict Standards: Non-static method JoomSEF::get() should not be called statically, assuming $this from incompatible context in /home/pyazilis/public_html/components/com_sef/joomsef.php on line 49
[14-Apr-2015 11:54:30 Europe/Istanbul] PHP Strict Standards: Non-static method JoomSEF::set() should not be called statically, assuming $this from incompatible context in /home/pyazilis/public_html/plugins/system/joomsef/joomsef.php on line 78
[14-Apr-2015 11:54:30 Europe/Istanbul] PHP Strict Standards: Non-static method JoomSEF::get() should not be called statically, assuming $this from incompatible context in /home/pyazilis/public_html/components/com_sef/joomsef.php on line 49
[14-Apr-2015 11:54:30 Europe/Istanbul] PHP Strict Standards: Non-static method SEFTools::getAllSubdomains() should not be called statically, assuming $this from incompatible context in /home/pyazilis/public_html/plugins/system/joomsef/joomsef.php on line 81

Artio jooomsef i kaldırsam sitemin trafiği önemli ölçüde düşüp 404 hataları artarmı, bu sorunu en az zarar ile nasıl halledebilirim ?