HBOG037E The z/OS® Log Forwarder cannot gather data from the VSAM data set data_set_name because the VSAM type is not supported.
Explanation
The z/OS Log Forwarder supports only VSAM data sets that are entry-sequenced (ESDS).
The data gatherer stops.
Response
Remove the data set gatherer definition, and restart the z/OS Log Forwarder.