Hi Stackers
I have been having this problem recently after I rip and repair certain landers.
Anyone out there can tell me why this happens or how to prevent or correct it?

Thanks
Look in the code for the string "&voluumdata" to see if it's left over there.
If not, check the way you call out parameters in JavaScript, and also look at how you setup the link in
Hi Manu
Yes when I call out for city using .<script>document.write(getURLParameter('city')); </script> I get
Thank you
Can you share the code and the URL parameters in the link please? For the link I mean everything after the question mark "?" sign.
Here is the link
http://xxxxxxx/xxxxd27-c839-4109-xxxxa77e3c76ef0?zoneid={zoneid}&campaignid={campai gnid}&visitor_id=${SUBID}
and here is the url afterwards
http://xxxxxxxxxxxxxxxxxxx/?model=Desktop&city=&voluumdata=BASE64dmlkLi4wMDAw MDAwNy0zZTJkLTQ3OWEtODAwMC0wMDAwMDAwMDAwMDBfX3ZwaW QuLjRjZGRjMDAwLTdhYzAtMTFlNy04ZTBjLTMzMDQ3NTlmNWQ1 NV9fY2FpZC4uYTRhYzVkMjctYzgzOS00MTA5LWIyNWQtOWE3N2 UzYzc2ZWYwX19ydC4uUl9fbGlkLi43ZTVkYWY0NC03NDFmLTRi OGMtODQ0Yy01OTcwNmIyOWNiZDZfX29pZDEuLjI5NGYwMWQ2LW M2ZmYtNDU1My1iNjI3LThhNzBhNjk5M2RmZV9fdmFyMS4ue3pv bmVpZH1fX3ZhcjIuLntjYW1wYWlnbmlkfV9fcmQuLl9fYWlkLi 5fX2FiLi5fX3NpZC4uX19jcmkuLl9fcHViLi5fX2RpZC4uX19k aXQuLl9fcGlkLi5fX2l0Li5fX3Z0Li4xNTAyMDM3MTQ2NTc2&z oneid={zoneid}&campaignid={campaignid}&visitor_id= ${SUBID}
the code for calling
<div class="hide-all">
<div id="fbalert"> <font ;="" color="#3b5998" size="3"> <center> <strong> <p> Anda telah dipilih untuk kesempatan untuk memenangkan sebuah iPhone baru 7 dan hadiah lainnya! </p> </strong> <font ;="" color="#3b5998" size="2"> <p> Setiap <script language="Javascript">document.write(dayarray[mydate.getDay()]);</script> kita pilih pengguna <script>document.write(getURLParameter('model')) </script> beruntung di <script>document.write(getURLParameter('city')); </script>. Anda memenuhi syarat untuk satu putaran pada roda beruntung. </p></font> </center>
</font>
Thank you Manu
Hey Paras,
I mean the lander link 
By the looks of it, you are not adding the right URL token from
Sorry....here is the lander link
http://xxxxxx.com/ixxxxxx?model={model}&city={city}
Thanks
Hmmm - by the looks of it, you could be just using a browser or ISP for which
You should add a case for when a variable is null and replace it with something, so you don't show this sort of error to your users.
Here you could always say something like:
var city = getURLParameter('city');
if (city == null) city = "your city";
Then you would use document.write(city) in the code, instead of calling getURLParameter again.
Thank you Manu
That is very helpful