Can't use string ("1133933987") as an ARRAY

Anyone experiencing this error or any ideas on how to resolve it???

Thanks!

error: Can’t use string (“1133933987”) as an ARRAY ref while "strict refs"
in use at
/usr/lib/perl5/vendor_perl/5.8.6/i386-linux-thread-multi/Time/HiRes.pm line
43.

context: …
39: sub tv_interval {
40: # probably could have been done in C
41: my ($a, $b) = @_;
42: $b = [gettimeofday()] unless defined($b);
43: (${$b}[0] - ${$a}[0]) + ((${$b}[1] - ${$a}[1]) / 1_000_000);
44: }
45:
46: # Autoload methods go after =cut, and are processed by the autosplit
program.
47:

code stack:
/usr/lib/perl5/vendor_perl/5.8.6/i386-linux-thread-multi/Time/HiRes.pm:43
/var/www/rt3/Elements/Footer:67
/var/www/rt3/Elements/Login:116
/var/www/rt3/autohandler:221