If your deployment strategy still evolves around ant deployment and not the new Salesforce CLI and you encounter this error on your deployment.

Failed to check the status for request ID=0Af0r00000ClbNgCAJ. Error: InfoNot a valid enumeration for type: class com.sforce.soap.metadata.DeployProblemType. Retrying…

While digging around, I found out this is a tool issue. Chances are your ant-salesforce jar library is outdated, you need to grab the latest salesforce-ant version from here

https://developer.salesforce.com/docs/atlas.en-us.daas.meta/daas/forcemigrationtool_install.htm

Update the library on your ant build path. Check your build.xml for the classPath if you are unsure of the path.

<taskdef resource="com/salesforce/antlib.xml" uri="antlib:com.salesforce">
        <classpath>
            <pathelement location="${basedir}/ant-salesforce.jar" />
        </classpath>
</taskdef>