I don't know why your program crashes but it is probably a good idea to redirect STDOUT and STDERR. Your last two lines are "really" doing:

print STDOUT "Content-type: text/html\n\n";
print STDOUT "$timepage";
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So you may find the following snippet (mostly from the Camel) usefull

open SAVEOUT, ">&STDOUT";
open STDOUT, ">/tmp/stdout.save";
    .
    .
print STDOUT "Content-type: text/html\n\n";
print STDOUT "$timepage";
    .
    .
open STDOUT,">&SAVEOUT";
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That's from memory so I wouldn't trust it

Update:You should of course do the same for STDERR