Unable to fetch transaction

Hi,

We have been using bambora as a payment gateway for years on our wordpress website with no issue with the plugin ‘Bambora Online ePay‘. When we tried to authorize our transactions to take payment today, we get the following error message:

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Get Transaction action failed – Unable to lookup errorcodee
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Could you please help us identify the issue? Nothing changed on our website, no plugin or theme update. We deactivated all plugins leaving only Woocommerce and Bambora plugin and the issue still remain.

Thank you