Bug with spam of "sending move"

When I check my server's log, I found this in great nomber (more 100 times) so my server crash :
[11:14:16] [Server thread/WARN]: Bennri is sending move packets too frequently (6 packets since last tick)
[11:14:19] [Server Watchdog/FATAL]: A single server tick took 60.00 seconds (should be max 0.05)
[11:14:19] [Server Watchdog/FATAL]: Considering it to be crashed, server will forcibly shutdown.