When reading the user guide, I noticed a link that is not current anymore and leads to error.
I encountered it at this page: ATIS | Infinite Flight
And the link is supposed to direct the reader to ATC Manual at: https://infiniteflight.com/guide/atc-manual/4.-atis/4.1-atis#4.1-atis
, which is not working.
I will post other outdated links here while going through the User Guide. I hope this helps.