Hi @fewafewa ,
May I know some more information for this issue first?
Can you provide some screenshots of "I couldn't find an InfoPath feature in the central administration" and the result of running the “Get-SPInfoPathFormsService” command?
Then It is recommend you do some troubleshooting:
First, go to Site Settings to confirm whether the feature SharePoint Server Publishing Infrastructure is activate at both site collection and site levels. If so, please deactivate and re-activate again.
Second, If the issue still exists, please run SharePoint 2019 Management shell to run the command below:
Enable-SPFeature -URL <YourSPSiteURL> -Identity IPFSSiteFeatures
If the feature is already activated, please disable and enable again:
Disable-SPFeature -URL <YourSPSiteURL> -Identity IPFSSiteFeatures
Enable-SPFeature -URL <YourSPSiteURL> -Identity IPFSSiteFeatures
Thanks,
Yanli Jiang
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