problem activating the plugin

Hi.
I cant activate the plugin.

Here is the error:

Fatal error: Uncaught Error: [] operator not supported for strings in /home……/wp-content/plugins/author-profiles/author_widget.php:233 Stack trace: #0 /home/……../wp-admin/includes/plugin.php(2050): include() #1 /home/…………/wp-admin/plugins.php(175): plugin_sandbox_scrape(‘author-profiles…’) #2 {main} thrown in /home/…………/wp-content/plugins/author-profiles/author_widget.php on line 233