update.php warning

when running update.php, the following warning is generated (installing the module isn't an issue, but after running the update script for other modules after installing the geobrowser module generates this warning)

An unrecoverable error has occured. You can find the error message below. It is advised to copy it to the clipboard for reference. Please continue to the update summary

Warning: Call-time pass-by-reference has been deprecated - argument passed by value; If you would like to pass it by reference, modify the declaration of file_copy(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file. However, future versions may not support this any longer. in /home/sgo_krubpbjmaf/pi7h0gp6j/sites/all/modules/geobrowser/geobrowser.install on line 41
{ "status": true, "percentage": 100, "message": "Updating complete" }