E-Commerce > Sales >"The unserialization has failed! - in plugin Actions."& Visitor Overview >"The unserialization has failed! - in plugin Actions."

Hello,

I need support with Matomo. After migrating my server, I started receiving the error message “The unserialization has failed! - in plugin Actions” when trying to view the entire month’s data in both E-Commerce and Visitor Overview reports.

I have tried all possible solutions, but the issue persists. Here’s what I’ve done so far:

• Executed php console database:optimize all
• Executed php console core:archive
• Updated Matomo from version 5.1.0 to 5.3.1
• Ran CHECK TABLE archive_numeric_*; REPAIR TABLE archive_numeric_*; in the database
• Etc.

This is the error I am seeing in the logs:

Uncaught exception: {PATH}/core/ArchiveProcessor/PluginsArchiver.php(206): The unserialization has failed! - in plugin Actions. [Query: ?date=2025-03-14&forceView=1&viewDataTable=sparklines&module=VisitsSummary&action=get&disableLink=0&widget=1&idSite=1&period=day, CLI mode: 0]

I would greatly appreciate any help with resolving this, as I am unable to proceed further.

Details about my Matomo installation:

• Matomo Version: 5.3.1
• PHP Version: 8.1
• Database Size: approx. 2 GB
• Memory Limit: 4 GB

Error Cause: It seems there is an issue with the deserialization of the data, affecting both reports.

Thank you very much for your help!

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