percona xtradb 5.6.37 cluster crash

Hi, we have a two node xtradb cluster updated to the latest 5.6 version: 5.6.37-26.21.3,
randomly both nodes crash and the log report these messages:
2017-12-08 06:18:17 3321 [Note] WSREP: Created page /var/lib/mysql/gcache.page.000000 of size 134217728 bytes
2017-12-08 07:03:30 3321 [Note] WSREP: Created page /var/lib/mysql/gcache.page.000001 of size 134217728 bytes
2017-12-08 07:48:47 3321 [Note] WSREP: Created page /var/lib/mysql/gcache.page.000002 of size 134217728 bytes
2017-12-08 08:34:20 3321 [Note] WSREP: Created page /var/lib/mysql/gcache.page.000003 of size 134217728 bytes
2017-12-09 01:47:47 3321 [Warning] WSREP: Failed to report last committed 254622550, -110 (Connection timed out)

What can we do to solve the problem?

Thanks

It’s hard to tell without checking all cluster nodes error logs to check whole cluster view.