3.5更新3.6版本後出現的問題

目前前台跟後台頁面都出現了亂碼，
位置在最下方，
內容如下：
com\wp-includes\class-wp.php on line 204 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 205 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 204 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 205 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 204 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 205 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 204 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 205 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 204 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 205 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 204 PHP Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in E:\wwwroot\86Duino.com\wp-includes\class-wp.php on line 205
關於這個錯誤我們始終無法解決，
請問是否有其他使用者遇過類似的問題並已獲得解決方案？
謝謝！