Using a Tinker's Construct Hammer, or presumably similar tool, which is able to mine multiple different Blocks at once, can cause a server to spit out several errors after one another, sometimes, when happening too quickly, even crash it.
From what I've noticed this happens, when multiple differents Blocks (e.g. Stone and some Ore in the same batch) are mined together

Happened to me and some friends on multiple occasions on our dedicated server.
(I used the Resonant Wand attuned to Evorsio, holding it in the offhand while mining, which I assume is the same effect as chain mining, aswell as having the Hammer upgraded to mine a 5*3 area)

Steps to Reproduce :
1. Have both TConstruct and AstralSorcery installed
2. Build a TConstruct Hammer (or maybe Excavator)
3. Have a Resonant Wand attuned to Evorsio in your Offhand (or presumably the chain mining perk)
4. Do some strip mining (on a dedicated server)