Fatal: MaxScale 2.2.13 received fatal signal 11 (Aurora Monitor)

I am not abe to start Maxscale after adding Aurora Monitor

Maxscale Version : 2.2.13
Ubuntu : 16.04

Log :

MariaDB MaxScale /var/log/maxscale/maxscale.log Sat Aug 11 05:33:38 2018

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2018-08-11 05:33:38 notice : Working directory: /var/log/maxscale

2018-08-11 05:33:38 notice : The collection of SQLite memory allocation statistics turned off.

2018-08-11 05:33:38 notice : Threading mode of SQLite set to Multi-thread.

2018-08-11 05:33:38 notice : MariaDB MaxScale 2.2.13 started (Commit: ec178fd8da484dd29560379a53fcecd11fd4f1c5)

2018-08-11 05:33:38 notice : MaxScale is running in process 10036

2018-08-11 05:33:38 notice : Configuration file: /etc/maxscale.cnf

2018-08-11 05:33:38 notice : Log directory: /var/log/maxscale

2018-08-11 05:33:38 notice : Data directory: /var/lib/maxscale

2018-08-11 05:33:38 notice : Module directory: /usr/lib/x86_64-linux-gnu/maxscale

2018-08-11 05:33:38 notice : Service cache: /var/cache/maxscale

2018-08-11 05:33:38 notice : Loading /etc/maxscale.cnf.

2018-08-11 05:33:38 notice : /etc/maxscale.cnf.d does not exist, not reading.

2018-08-11 05:33:38 notice : [cli] Initialise CLI router module

2018-08-11 05:33:38 notice : Loaded module cli: V1.0.0 from /usr/lib/x86_64-linux-gnu/maxscale/libcli.so

2018-08-11 05:33:38 notice : [readwritesplit] Initializing statement-based read/write split router module.

2018-08-11 05:33:38 notice : Loaded module readwritesplit: V1.1.0 from /usr/lib/x86_64-linux-gnu/maxscale/libreadwritesplit.so

2018-08-11 05:33:38 notice : Loaded module auroramon: V1.0.0 from /usr/lib/x86_64-linux-gnu/maxscale/libauroramon.so

2018-08-11 05:33:38 warning: Protocol module 'mysqlbackend' has been deprecated, use 'mariadbbackend' instead.

2018-08-11 05:33:38 notice : Loaded module mariadbbackend: V2.0.0 from /usr/lib/x86_64-linux-gnu/maxscale/libmariadbbackend.so

2018-08-11 05:33:38 notice : Loaded module MySQLBackendAuth: V1.0.0 from /usr/lib/x86_64-linux-gnu/maxscale/libmysqlbackendauth.so

2018-08-11 05:33:38 notice : Loaded module maxscaled: V2.0.0 from /usr/lib/x86_64-linux-gnu/maxscale/libmaxscaled.so

2018-08-11 05:33:38 notice : Loaded module MaxAdminAuth: V2.1.0 from /usr/lib/x86_64-linux-gnu/maxscale/libmaxadminauth.so

2018-08-11 05:33:38 notice : Loaded module MariaDBClient: V1.1.0 from /usr/lib/x86_64-linux-gnu/maxscale/libmariadbclient.so

2018-08-11 05:33:38 notice : Loaded module MySQLAuth: V1.1.0 from /usr/lib/x86_64-linux-gnu/maxscale/libmysqlauth.so

2018-08-11 05:33:38 notice : Monitor 'Aurora-Monitor' is missing the 'journal_max_age' parameter, using default value of 28800 seconds.

2018-08-11 05:33:38 notice : Monitor 'Aurora-Monitor' is missing the 'script_timeout' parameter, using default value of 90 seconds.

2018-08-11 05:33:38 notice : No query classifier specified, using default 'qc_sqlite'.

2018-08-11 05:33:38 notice : Loaded module qc_sqlite: V1.0.0 from /usr/lib/x86_64-linux-gnu/maxscale/libqc_sqlite.so

2018-08-11 05:33:38 warning: Removing stale journal file for monitor 'Aurora-Monitor'.

2018-08-11 05:33:38 notice : Using encrypted passwords. Encryption key: '/var/lib/maxscale/.secrets'.

2018-08-11 05:33:38 notice : Starting a total of 2 services...

2018-08-11 05:33:38 alert : Fatal: MaxScale 2.2.13 received fatal signal 11. Attempting backtrace.

2018-08-11 05:33:38 alert : Commit ID: ec178fd8da484dd29560379a53fcecd11fd4f1c5 System name: Linux Release string: Ubuntu 16.04.5 LTS

2018-08-11 05:33:38 alert : /usr/bin/maxscale() [0x4083fd]: ??:0

2018-08-11 05:33:38 alert : /lib/x86_64-linux-gnu/libpthread.so.0(+0x11390) [0x7f4098925390]: ??:?

2018-08-11 05:33:38 alert : /usr/lib/x86_64-linux-gnu/maxscale/libauroramon.so(update_server_status+0xe1) [0x7f4093cf18e1]: /home/vagrant/MaxScale/server/modules/monitor/auroramon/auroramon.c:74

2018-08-11 05:33:38 alert : /usr/lib/x86_64-linux-gnu/maxscale/libauroramon.so(+0x1a7c) [0x7f4093cf1a7c]: /home/vagrant/MaxScale/server/modules/monitor/auroramon/auroramon.c:134

2018-08-11 05:33:38 alert : /lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba) [0x7f409891b6ba]: ??:?

2018-08-11 05:33:38 alert : /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7f409708641d]: ??:0

MariaDB MaxScale /var/log/maxscale/maxscale.log Sat Aug 11 05:33:38 2018

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2018-08-11 05:33:38 error : No data read from child process pipe.

2018-08-11 05:33:38 MariaDB MaxScale is shut down.