The mod Platforms do not request full stacks of buildings (1.0.15) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event platforms-do-not-request-full-stacks-of-buildings::on_script_trigger_effect (ID 173)
...ms-do-not-request-full-stacks-of-buildings__/control.lua:40: attempt to index local 'item' (a nil value)
stack traceback:
...ms-do-not-request-full-stacks-of-buildings__/control.lua:40: in function 'filter_matches_item'
...ms-do-not-request-full-stacks-of-buildings__/control.lua:45: in function 'section_get_filter_for_item'
...ms-do-not-request-full-stacks-of-buildings__/control.lua:96: in function <...ms-do-not-request-full-stacks-of-buildings__/control.lua:77>

The above is the crash I get when it starts to place orbital ion cannons (from this mod Orbital Ion Cannon (Space Age Edition) by kuxynator) on platforms, it does not instantly crash but it starts to do so after a few have been placed or a few seconds have pased if only 2-3 have been placed.

I am assuming its because of the way the oribital ion cannon mod handles its "destruction" of the radar entities that it places to give the player the ion cannons causes a weird interaction between the two mods.