Event ID 7270 Index Server Process Failed

Hi,

Getting this Warning appear quite a lot in my EV event log, cant seem to find much about it online, not this specific Event ID anyway. Anyone know any more about it? Full text below

Index Server process failed 
Index: 1BFF217D349EE5942AD47F2852F62DF8D1110000SERVERNAME/VolumeSet:4907 
PID: 11116 
Exit Code: 3 

Looked for the index folder named 1BFF217D349EE5942AD47F2852F62DF8D1110000 in my Index location on the server in question and cannot find it, so this may be the issue?! 

Error goes back a few months, so not super urgent, but trying to clean up the event log so it doesnt look so frightning!

Any help appreciated, thanks