[support] WorldPay callback Errors

[Fred Jones]

I have ecommerce with WorldPay integration, and the back end is
working, BUT when WorldPay displays the callback page, with URL like:

https://select.worldpay.com/wcc/card?op-PMGetNextPage&PaymentID=mg1imsps........
etc.

I see:

warning: array_keys() [function.array-keys]: The first argument should
be an array in /var/www/vhosts/mysite.org/httpdocs/modules/user/user.module
on line 378.
warning: array_fill() [function.array-fill]: Number of elements must
be positive in /var/www/vhosts/mysite.org/httpdocs/modules/user/user.module
on line 379.

etc--like 10 such lines.

anyone have any idea what that could be?

Thanks