How to fix the red health?

[airmansavath]

Yes, I'm new to this Splunk stuff and I'm trying to learn and I have a health red and I'm not sure how to fix it and i don't know if it's causing me other issues 

here are the list that are marked in red. 

splunkd

Data Forwarding

Splunk-2-Splunk Forwarding

TCPOutAutoLB-0

File Monitor Input

Ingestion Latency

Real-time Reader-0

also I'm currently am taking some online courses from Udemy. would anyone  recommend anything else or where to learn?  I'm only asking because these courses are out of date. 

[stlouissplunk]

i am currently taking udemy classes also and my splunk enterprise health is in the red. who can help me with this?

[richgalloway]

We can't help you fix what's wrong without knowing what is wrong.  "Red health" could be caused by any of many things (or multiple things).  Click on the read health icon to show the health status and then click on each red icon to get details about what is wrong (or what Splunk thinks is wrong - sometimes it's wrong about that).  Pass on that information and someone should be able to help you fix it.