error akismet

Hi, upgrading to the latest akismet i get the following error when i am on the ‘widgets page’:

Warning: Cannot use a scalar value as an array in /home/sharing/domains/sharing2gether.nl/public_html/wp-content/themes/s2g/core/widgets.php on line 16</

As i am a noob with php, what does it mean and what am I going to do about it?

thanks in advance!

https://www.ads-software.com/extend/plugins/akismet/