Log here: https://mclo.gs/MEOm2IR
More things like debug.log and latest.log could be provided if necessary, please feel free to mention me and ask for them if needed.
Never seen this issue since the server's first update introduced this mod until this issue posts.
There is no more up-to-date version at the moment I'm writing this issue post.
My server player reported that it seems to be caused by item rainbounce_boots.
thanks for your time to look into this.