Monit 5.20.0 daemon cannot send stat to M/Monit 3.6.2

[Former user]

M/Monit 3.6.2-linux-x64 Monit 5.20.0 daemon

When the deamon tries to send stats I get an error in the M/Monit error.log

AssertException: S->data->type & StatisticsData_DoubleAggregate (src/statistics/Statistics.c Statistics_setDoubleAggregate 348) when processing message posted from Monit at host 'xxx.xxx.xxx' (monitid=xxxxxxxxxxxxxxxxxx)

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Please can you send the logs/mmonit.log and logs/error.log to [e-mail]?

If you updated to M/Monit 3.6.2 from previous M/Monit release, were there any errors during the upgrade?

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waiting for data