URGENT - Merge XFDF API giving [502] internal error

Which product are you using?
PDF.js Express Plus

PDF.js Express Version

Detailed description of issue
We are getting a [502] internal server error since last night when sending a Merge XFDF REST request.

The link to the pdf file is - https://parspec-product-url.s3.amazonaws.com/media/submittals/4986/mergedpdfs_BG9GrZm.pdf

The XFDF to be merged is attached in the txt file.
xmlOneFile.zip (3.5 KB)

I’ve checked the license key and it is fine. This was working fine yesterday evening Indian Time and we haven’t changed anything in the codebase since then. Please help us resolve this ASAP. We’d be grateful as this is essential to our users and they won’t be able to use the product unless this is resolved.


Expected behaviour
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Does your issue happen with every document, or just one?

Link to document
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Code snippet
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Issue is resolved