Hi Planck,
Malformed payload.
Possible Causes
The pre-shared keys on both ends of the IKE peer are inconsistent.
Solution
1. Run the display ike peer command to check the pre-shared keys of both ends.
<Huawei> display ike peer name peer1
2. Run the pre-shared-key command in the IKE peer view to ensure that the pre-shared keys on both ends are the same.
I hope it helps!