The client crashed unexpectedly:
2024-10-06 20:52:33 I assert: /home/breton/games/ddnet-infclass/src/engine/client/text.cpp(972): Text container index was invalid.

There is nothing useful in the file in the dumps, there is only the log line quoted above and useless chat messages several seconds before. The map was infc_spacelab, the server was Teesports:
2024-10-06 20:59:24 I chat: *** InfectionClass Mod. Version: 0.6.4, 1.5.3
The client crashed unexpectedly:
There is nothing useful in the file in the
dumps, there is only the log line quoted above and useless chat messages several seconds before. The map was infc_spacelab, the server was Teesports: