Borken consistency on Galera

We have three nodes MariaDB-Galera-Cluster 10.0.30
Today one of nodes (Node Number 2) disconnected from group.
After reviewing error log, I saw an error happened:
This was error:
170418 18:11:48 [ERROR] WSREP: Local state seqno (3472060319) is greater than group seqno (3472057835): states diverged. Aborting to avoid potential data loss. Remove '/home/mysql//grastate.dat' file and restart if you wish to continue. (FATAL).
So after review all three servers log, I think in the interval 18:06:58 to 18:11:50 The internet connection of node 2 have been disorder, and in the meantime (When it was Non-primary) several query could be executed and commited.
I've attached my error logs to see.
Node 1 IP : ..*.35
Node 2 IP : ..*.60 (Impacted)
Node 3 IP : ..*.206
Sorry for my bad English.