PHP7 compatibility issues

Hello, i am preparing to update the websites i manage to the new PHP 7. On a test site that uses this plugin with php7, i am getting the following error that blocks the homepage from loading. Other pages that are not using your plugins shortcode, work nicely.

Test site: https://dmc.kodeserver.net/
main site: https://dm-c.it/

Hope you can help.

Here is the error from php’s “error_log” file:

[28-Jun-2016 09:28:52 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function split() in hidden_path/wp-content/plugins/syndicate-press/syndicate-press-plugin.php:276
Stack trace:
#0 [internal function]: SyndicatePressPlugin->sp_filterCallback(Array)
#1 hidden_path/wp-content/plugins/syndicate-press/syndicate-press-plugin.php(162): preg_replace_callback(Array, Array, '<pre class="gdl...')
#2 hidden_path/wp-includes/plugin.php(235): SyndicatePressPlugin->sp_ContentFilter('<pre class="gdl...')
#3 hidden_path/wp-content/themes/goodspace/page.php(63): apply_filters('the_content', '<pre class="gdl...')
#4 hidden_path/wp-includes/template-loader.php(75): include('hidden_path/...')
#5 hidden_path/wp-blog-header.php(19): require_once('hidden_path/...')
#6 hidden_path/index.php(17): require('hidden_path/...')
#7 {main}
  thrown in hidden_path/wp-content/plugins/syndicate-press/syndicate-press-plugin.php on line 276

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