Bob's mods have been updated! As part of that, the big pipes setting has been removed as it doesn't make sense with the Factorio 2.0 fluid rework.
Fluid Level Indicator is trying to read this setting, causing a crash.
if settings.startup["bobmods-logistics-highpipes"].value == true then
https://github.com/kmecseki/Fluid-level-indicator/blob/main/compatibility%2Fcom_control.lua#L16
