Selfoss is exactly what I need, but I can't get it to do one thing. Update.

I use GoDaddy, and in order to run a cron job, I use the Cron Job Manager, which lays out the directory to the update file like so:
/web/cgi-bin/php5 "$HOME/html/selfoss/update.php"

I've tried using /update, /Update and /Update.php, but those all produce 404 errors.

The /update.php file generates this error:

Content-type: text/html

<br />
<b>Warning</b>: Unexpected character in input: '\' (ASCII=92) state=1 in <b>/home/content/60/11677160/html/selfoss/update.php</b> on line <b>20</b><br />
<br />
<b>Warning</b>: Unexpected character in input: '\' (ASCII=92) state=1 in <b>/home/content/60/11677160/html/selfoss/update.php</b> on line <b>20</b><br />
<br />
<b>Parse error</b>: syntax error, unexpected T_STRING in <b>/home/content/60/11677160/html/selfoss/update.php</b> on line <b>20</b><br />

The line indicated in the above error is:
new \helpers\Logger( __dir__.'/data/logs/default.log', $f3->get('logger_level') )

I feel like the solution is staring me in the face, but I'm at a loss.

A little help?