Onlyoffice common section parameters in owncloud

Hello,
In owncloud parameters, the additional common section of onlyoffice where we can select the onlyoffice file types does not appear anymore.Uninstalling onlyoffice does not solve this problem. I look inside the databases and in the configuration files but I do not see anything explaining that. Do you know how to reset it ?
Regards,
Alain Bonnin

I finally found it in the database. But I have cURL error 28: Connection timed out after 60001 milliseconds… in settings_error

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