Did you try to re-install the plugin?
cleantalk.org
Updating CleanTalk Anti-Spam Add-on on XenForo 2.x
Guide how to update the CleanTalk Anti-Spam Add-on

Hello,@CleanTalk Team @Roiarthur I reported this to them back in November 2022, and they still haven't gotten it fixed..
We see the same type of message every few weeks being triggered on our forum as well..
Here's the response I got back then:
View attachment 297566
It is still not fixed..
This update breaks the forum software; you cannot log in to the forums after uploading it. I have tried it on four different forums with different setups. Here is the error if you are already logged in as Admin:Hello @mazzly @Roiarthur,
Thank you for waiting.
We've made big changes to our plugin that should fix these issues.
You can download the new version from here: https://github.com/CleanTalk/xenforo2-antispam/archive/refs/heads/Common-lib-updating.zip
Copy the CleanTalk folder to your /src/Addons.
Please, keep us informed.
Kind regards.
No, here is the error:Hello @GeekyPhilip,
Please try this version: https://cleantalk-screenshots.s3.amazonaws.com/_temp/CleanTalk-3.0.0.zip
Did it help?

Please delete the previous version of the plugin completely and install this version anew.A bit more info:
Cleantalk 2.9.0 has 88 items
Cleantalk 3.0.0 has 6473 items
xenforo2-antispam-Common-lib-updating has 128 items and fails a fresh install with the following error:
View attachment 299618
Overwriting "Cleantalk 2.9.0" with "xenforo2-antispam-Common-lib-updating" does not give all the files that the "xenforo2-antispam-Common-lib-updating" is expecting.
Cleantalk 3.0.0 has a lot of production files in it like the PHP sniffer.
If you could rebuild xenforo2-antispam-Common-lib-updating as Cleantalk 3.0.0 again without all the dependencies that do not exist.
Please, create a private ticket and copy-paste your question there for further investigation:We cannot make an upgrade or proceed to a new installation
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