We noticed this TA error issue on Splunk Cloud as soon as this TA was installed. So there is no license issue in our environment. A quick test is to install this TA in a valid licensed environment and see it break search. The OP may have had a coincidental License error.
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The TA that generates this transforms seems to break searches after running into this error. We have to remove the CA Privileged Access Manager (PAM) Add-on for Splunk TA and restart Splunk to fix this issue. Your issue with search may be related to the TA.,
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