26717.124 Error MainLoop.cpp:1284: Exception at tick 69116805: The mod Module Inserter (5.2.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event ModuleInserter::on_gui_elem_changed (ID 69)
ModuleInserter/scripts/gui.lua:681: attempt to index local 'entity_proto' (a nil value)
stack traceback:
ModuleInserter/scripts/gui.lua:681: in function 'handler'
ModuleInserter/control.lua:697: in function <ModuleInserter/control.lua:689>
26717.124 Error ServerMultiplayerManager.cpp:92: MultiplayerManager failed: "The mod Module Inserter (5.2.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event ModuleInserter::on_gui_elem_changed (ID 69)
ModuleInserter/scripts/gui.lua:681: attempt to index local 'entity_proto' (a nil value)
stack traceback:
ModuleInserter/scripts/gui.lua:681: in function 'handler'
ModuleInserter/control.lua:697: in function <ModuleInserter/control.lua:689>"

Yep, looks like I got the same crash.

725956.088 Error MainLoop.cpp:1284: Exception at tick 24190046: The mod Module Inserter (5.2.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event ModuleInserter::on_gui_elem_changed (ID 69)
ModuleInserter/scripts/gui.lua:681: attempt to index local 'entity_proto' (a nil value)
stack traceback:
ModuleInserter/scripts/gui.lua:681: in function 'handler'
ModuleInserter/control.lua:697: in function <ModuleInserter/control.lua:689>
725956.088 Error ServerMultiplayerManager.cpp:92: MultiplayerManager failed: "The mod Module Inserter (5.2.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event ModuleInserter::on_gui_elem_changed (ID 69)
ModuleInserter/scripts/gui.lua:681: attempt to index local 'entity_proto' (a nil value)
stack traceback:
ModuleInserter/scripts/gui.lua:681: in function 'handler'
ModuleInserter/control.lua:697: in function <ModuleInserter/control.lua:689>"

Should be fixed in the next version

thanks