Anybody can help me to setup my new pid. i can not use autotune. my tiny 250mm quad. find problem from log

Some info on my quad:
frame at 250mm
APM2.6 with remote compass and GPS
3s 1550 mah battery
1805 kv2600 moto
ZTW 10a ESCs
5045

i am a new player of apm.

i want to use AutoTune.

but in my quad.  it only works 5times, then autotune fail.

could anybody help

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