I've had this mission for a while and not because it was too difficult to solo myself. No, the reason I've had it so long was because of when I got to step 4 out of 5, where the log said "You ponder how to get a response from the Warder. Perhaps the Children are the answer". And after doing a search on the web and ultimately coming up empty, I asked in game and was told "the Children are the L35 Ouroboros Worms on Planet Arduinne; kill them". So I did and I killed over 4 dozen of them but my mission never updated. So I forfeited the mission and started over from the beginning and once I reach step 4 out of 5, same problem.
Then I got in touch with Aella, a DEV and Aella told me to head to Glory's Orbit for Quanta Silk carried by "L28 Veteran Silk Smugglers" who can be found around "the Progen Path Nav". Now once I looted one "Level 1 Quanta Silk", I flew back to Planet Arduinne and spoke with the "Temple Interface" and after doing so, I completed the mission and it cleared from my log.
I write this post so if another player who reaches the same point I did and wants to complete the mission but doesn't know how, they can read this and know what to do next.