[BUG REPORT] In meta KW code

Hi,

I have this errors on my PHP log :

[18-Dec-2014 10:35:09 UTC] PHP Warning: explode() expects parameter 2 to be string, array given in /srv/data/web/vhosts/www.&&&&&&&&.fr/htdocs/wp-content/plugins/seo-ultimate/includes/jlfunctions/arr.php on line 50
[18-Dec-2014 10:35:09 UTC] PHP Warning: array_map(): Argument #2 should be an array in /srv/data/web/vhosts/www.&&&&&&&&.fr/htdocs/wp-content/plugins/seo-ultimate/includes/jlfunctions/arr.php on line 51
[18-Dec-2014 10:35:09 UTC] PHP Warning: array_diff(): Argument #2 is not an array in /srv/data/web/vhosts/www.&&&&&&&&.fr/htdocs/wp-content/plugins/seo-ultimate/modules/meta/meta-keywords.php on line 127
[18-Dec-2014 10:35:09 UTC] PHP Warning: array_slice() expects parameter 1 to be array, null given in /srv/data/web/vhosts/www.&&&&&&&&.fr/htdocs/wp-content/plugins/seo-ultimate/modules/meta/meta-keywords.php on line 128
[18-Dec-2014 10:35:09 UTC] PHP Warning: implode(): Invalid arguments passed in /srv/data/web/vhosts/www.&&&&&&&&.fr/htdocs/wp-content/plugins/seo-ultimate/modules/meta/meta-keywords.php on line 129

Can you help me ?

Thanks for your help and your excellent plugin.

https://www.ads-software.com/plugins/seo-ultimate/