Vtol crashed during flight unknown reason

[Vikash9771 (Vikash Kumar)]

hello experts could you please have a look on my log and help me in finding reason of crash.
https://drive.google.com/drive/folders/1TCdO3LdIvH0Na3Vi3FNn9kvL5ehCAO6N?usp=share_link

[dkemxr (Dave)]

Looks like thrust loss on Motor 1, Motor 2 drops to stabilize the craft and down it goes.