Received your file. The error I was getting was that this log file was for Version 2.51, which I had not installed. I just did and was able to load the file ok.
Note that the log file shows your receiver as a Micro 8 with version 2.33. (I beleive it works ok, but you may want to update it as well).

The log shows all RF operations OK, until all communications are lost. There was no fail safe, low battery or loss of good frames prior to the break in communications. Your signal strength RSSI due show trending lower and lower, so I assume the plane was getting far from you. I compared with other planes i have and your signal strength (RSSI in Dbm) was much lower than mine at the lowest. However your good frames were almost perfect, so control was not lost.

Did you went behind some terrain that will block line of sight? Seems as if you went very far and then then went behind some obstacle that caused the signal to go from almost perfect to non-existent.

If you were not flying far, I guess it could also be a catastrophic receiver failure.

Sorry for your loss.

I will post this file in a Weatronic thread in the RC Jets forum, so others can evaluate it.