Add-on Update Failure

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Hi there,

I've been having trouble updating these two add-ons. Every time I try, it comes up with the error message '1'. I just did a system update for my site (the current version), thinking it would solve this, but it is still providing me with the same error message.

How do I go about fixing this? The error message '1' is not helpful at all... does anyone know what this means?

Many thanks,

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