According to one of my users: "i did a summon vex spell, bu with a summoning focus and cast it twice, some weird interaction with them trying to spawn multiple times i believe"

Here's the crash log: https://pastebin.com/jGggjj71

Crash happened again, this time no one is aware of any actions they could have taken that caused it. However, it's a public server and not everyone is in discord, so it's possible it was an unknown factor.

Player said it was them trying to summon skeletons this time. "lol yeah, so it seems like on the initial cast the spell is fine, but a secnd cast even with summoning sickness still crashes the server which is weird"