Context

After insertion of copy of schematic into second schematicannon which placed nearby of working first one, server crashed. After server restart nothing happens, but if any player load chunk in which schematicannon are located it crashes.
Modpack: ATM10

Crash Report

https://mclo.gs/vvbGR3S

#9402
This may be the reason for the crash.

Probably, while uploading a schematic file, scheme that already contains the uploading schematic is loaded into the schematicannon, a crash occurs because the uploading schematic file is incomplete.