Bug on internet explorer

Bug on internet explorer

Hello,

I have started the integration of zoho SalesIQ on Monday but it looks we are experiencing some troubles.
A part of our javascript scripts seems to crash.

After a little research. We are having problems on all versions off internet explorer from at least v6 to 9.
Internet explorer 11 seems to work fine, firefox and chrome are, as expected, imperturbable.

See attachment for details.

What can I do ?

At this moment, I had no choice but to delete zoho salesIQ from my website.