Error in CGI Application

[Silver Moon]

Just wondering if anyone's seen this error before and might have any idea if it's actinic related or not?

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Error in CGI Application

CGI Error
The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are:

Unrecognized character \x08 at cgi-bin/ao000001.pm line 3252.
Compilation failed in require at C:\data\virtualdomains\*****\adultbookshops.com\documents\cgi-bin\ca000001.pl line 31.
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(note, I've edited out the username in the path above)

I think it may be a server-side issue.
I've already opened a support ticket with our web host and am waiting for a reply.
Basically, this error appears whenever anyone tries to add an item to the cart.
Everything was working fine (for many months now) just up until a couple of hours ago.
I've tried updating and refreshing the site with actinic,
and the operation was successful,
but the error message persists.

Thanks.

[Silver Moon]

This issue is now resolved.

Not sure what was causing it, but I've somehow managed to fix the problem by changing a few settings, checking a few templates, and updating the site. Phew