Gold Price Chart module for Joomla

This module is used to add gold, silver, platinum or palladium price charts to your website. Currently, this module is compatible with Joomla 3, 4 and 5. You can download and install it for free.
The data is updated from BullionVault, an online gold trading website.
Besides, the following currencies are also supported: USD, GBP, EUR, JPY, AUD, CAD, CHF.

Module settings parameters:
- Ratio : The ratio between the width and height of the chart container. [Width]:[Height]
- Time Frame : 10 Min ~ 20 Years
- Chart Type : Line or High-Low-Close
- Latest Price Line : Hide/Show the latest price line
- Credit : Hide/Show description's credits.
- Mini Chart Mode : Supports very small sizes, but lacks some features. This mode is ideal for embedding the chart in the side column of your website.
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Please share it if you find it useful.
I migrated about a thousand items with attachments from K2 using your tool and attachments plugin. I initially did this on a test account. Everything worked fine over there. The migrated article attachments worked fine. Then I backed it all up and moved it to my live domain. Now none of the attachments load. All I get is Exception File Not Found and I can't figure out where to look. Turning on error reporting and debug don't tell me anything. I am guessing the old files were not moved during the migration correct? Or how does that all work? I still have all the original folders in the original places as far as I can tell.
An error has occurred. 0 implode(): Argument #2 ($array) must be of type ?array, string given
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Any idea what's causing this?