Hi @jkambic,
- 
Ran:
GET heartbeat-7.9.1/_mapping/field/observer.geo.name - 
Response:
{
"error" : {
"root_cause" : [
{
"type" : "index_not_found_exception",
"reason" : "no such index [heartbeat-7.9.1]",
"resource.type" : "index_or_alias",
"resource.id" : "heartbeat-7.9.1",
"index_uuid" : "na",
"index" : "heartbeat-7.9.1"
}
],
"type" : "index_not_found_exception",
"reason" : "no such index [heartbeat-7.9.1]",
"resource.type" : "index_or_alias",
"resource.id" : "heartbeat-7.9.1",
"index_uuid" : "na",
"index" : "heartbeat-7.9.1"
},
"status" : 404
} - 
Stopped Heartbeat
 - 
Removed index heartbeat-7.9.1
 - 
Removed Legacy index template heartbeat-7.9.1
 - 
Ran
GET /_cat/indices. Found the other beats indexes, but nothing mentioningheartbeat - 
Confirmed Uptime can't find any index to read from
 - 
Ran
.\heartbeat.exe setupto create index and template (no errors) - 
Started
heartbeatservice (no errors) - 
Ran:
GET /_cat/indices - 
Response:
 
green  open heartbeat-7.9.1                   iF4pc8ySSza5XtM_z40yzg 1 0      19      0 119.8kb 119.8kb
- Confirmed index and index template added for 
heartbeat-7.9.1 - Ran: 
GET heartbeat-7.9.1/_mapping/field/observer.geo.name - Response:
{
"heartbeat-7.9.1" : {
"mappings" : { }
}
} 
From this point the issue has been reproduced. Uptime is showing again the "Internal server error".  Is this Heartbeat version not mapping correctly when running the setup?
