[Plugin: Allow PHP in Posts and Pages] Bug

Hi,
I have this error, how can i fix it..

Warning: preg_replace() [function.preg-replace]: Compilation failed: nothing to repeat at offset 0 in /home/jasni/public_html/jobboards/wp-content/plugins/allow-php-in-posts-and-pages/allowphp.php(373) : eval()’d code on line 7

Thanks

https://www.ads-software.com/extend/plugins/allow-php-in-posts-and-pages/