Master and Subsite appear to connect but users don't sync

I am using the plugin on a SiteGround staging environment to test and make sure there are no conflicts before going live. I have created a staging environment for our two site and everything with the sites appears to work fine. I installed the User Sync plugin on both site and they appeared to connect as the Master could see the subsite and vise versa but the users from the master were not synced. I researched the issue and disabled the plugin on both sites, enabled debug and tried to reconnect them and received the following message on the subsite in a plain white window. Can you help resolve this issue?

Thanks, -Matt

Warning: fopen(/home/teknorcc/staging/2/wp-content/plugins/user-sync/log/errors_s.log) [function.fopen]: failed to open stream: No such file or directory in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 169

Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 171

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 172

Warning: fopen(/home/teknorcc/staging/2/wp-content/plugins/user-sync/log/errors_s.log) [function.fopen]: failed to open stream: No such file or directory in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 169

Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 171

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 172

Warning: fopen(/home/teknorcc/staging/2/wp-content/plugins/user-sync/log/errors_s.log) [function.fopen]: failed to open stream: No such file or directory in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 169

Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 171

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 172

Warning: fopen(/home/teknorcc/staging/2/wp-content/plugins/user-sync/log/errors_s.log) [function.fopen]: failed to open stream: No such file or directory in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 169

Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 171

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 172

Warning: fopen(/home/teknorcc/staging/2/wp-content/plugins/user-sync/log/errors_s.log) [function.fopen]: failed to open stream: No such file or directory in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 169

Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 171

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 172

Warning: fopen(/home/teknorcc/staging/2/wp-content/plugins/user-sync/log/errors_s.log) [function.fopen]: failed to open stream: No such file or directory in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 169

Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 171

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php on line 172

Warning: Cannot modify header information - headers already sent by (output started at /home/teknorcc/staging/2/wp-content/plugins/user-sync/user-sync.php:169) in /home/teknorcc/staging/2/wp-includes/pluggable.php on line 1207