Unfortunately, the long error message has no information on the cause of the problem.
Originally Posted by Dustan D
May 09 03:22:12 XLite [warning] Failure to pack items: 4798 (weight: 81.00, qty: 1)
Limit failure: weight = 81 (limit is 70)
URI: /best/admin.php?target=event_task&action=run&event=feedG eneration;
Hm, I don't see why the feed generator could try to pack items into parcels and fail because of the weight limit set for a single parcel... This may be cause.
Please report this to the XC5 dev team: