Bug since the last version

Hello,

Since the new version Ihave a fatal error with simple autor box.

I like to buy the pro version but if the free version works !

Look :

Fatal error: Uncaught Error: Using $this when not in object context in
/home/clients/4c15c3b0b2b2373ea9602e80fb27f532/web/wp-content/plu-
gins/simple-author-box/inc/functions.php:16Stacktrace:#0
/home/clients/4c15c3b0b2b2373ea9602e80fb27f532/web/wp-in-
cludes/class-wp-hook.php(307):wpsabox_author_box('<p><imgclass=".
..*)
#1/home/clients/4c15c3b0b2b2373ea9602e80fb27f532/web/wp-in-
cludes/plugin.php(189):WP_Hook->apply_filters('<p><imgclass="...,Array)
#2/home/clients/4c15c3b0b2b2373ea9602e80fb27f532/web/wp-in-
cludes/post-template.php(253):apply_filters("'the_content','<img
class="ali...)#3
/home/clients/4c15c3b0b2b2373ea9602e80fb27f532/web/wp-
content/themes/twentytwelve/content.php(46):thecontent('Continuerla
le...)#4/home/clients/4c15c3b0b2b2373ea9602e80fb27f532/web/wp-in-
cludes/template.php(772):require(/home/clients/4...')#5
/home/clients/4c15c3b0b2b2373ea9602e80fb27f532/web/wp-in-
cludes/template.php(716): load template('/home/clients/4...', false, Array)
#6/home/clients/4c15c3b0b2b2373ea9602e80fb27f532/win
/home/clients/4c15c3b0b2b2373ea9602e80fb27f532/web/wp-
content/plugins/simple-author-box/inc/functions.phponline16

Thank you