Fix error in Wordpress plugin

We use the Sync Post With Other Site plugin to duplicate content from one site to another.

But when using the plugin we encountered an error: Fatal PHP Error on line 126 in file sps_sync.class.php

Description of the problem on the plugin support page for other users - https://wordpress.org/support/topic/fatal-php-erro...

In our case, the plugin works when you disable the redirect from http to https, but periodically the error pops up.

You need a performer who can deal with the problem and solve it.