Problem in the installation

I have installed the module and when I publish it, I receive this notice:

Undefined variable: parallax_js in C:\wamp\www\click2travel\modules\mod_customparallaxck\mod_customparallaxck.php on line 77

I use protostar template in joomla.
Can I do something for this?
Thank you

Hi
I will check this by my side, for now go in your configuration >> server >> php report >> set it to none
CEd

When I go global Configuration >> server in my joomla administrator panel, I cannot see any option about php report....

it is the 3rd option under Gzip compression

Yes I found it.
Is there anything I can do to fix the error in php to start using the module?
Or is there any other way to have the parallax effect? Thank you

if you set it to none, the error must go
if you still have a problem to use it, give me your url to check