Exporter errors and stops reporting after some time

[jeanbza]

I noticed that when I leave my app running for a period of time, eventually it stops reporting with this error:

{
 insertId:  "i1qjvug3b9hn98"  
 labels: {…}  
 logName:  "projects/deklerk-sandbox/logs/go-ps-consumer"  
 receiveTimestamp:  "2018-10-15T15:03:37.561005583Z"  
 resource: {…}  
 severity:  "INFO"  
 textPayload:  "got stackdriver-opencensus err rpc error: code = Internal desc = One or more TimeSeries could not be written: An internal error occurred.: timeSeries[10,11]
"  
 timestamp:  "2018-10-15T15:03:33Z"  
}

What does this error mean? Minimally, should it include the reason why the timeseries could not be written?