So, I found a log file on /var/log/postgres/
DETAIL: "max_stack_depth" must not exceed 7680kB.
HINT: Increase the platform's stack depth limit via "ulimit -s" or local equivalent.
2016-08-02 19:54:06.293 UTC|12960|FATAL: configuration file "/etc/postgresql/9.2/main/postgresql.conf" contains errors
I changed the max_stack_depth value on postgresql.conf.
Now, I'm getting this error:
could not open file "pg_xlog/00000002000014AB0000000B" (log file 5291, segment 11): No such file or directory
The wal_files aren't inside pg_xlog... I store them in a different folder. Will try to solve this.