The mod Disco Science (1.1.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event DiscoScience::on_built_entity (ID 6)
attempt to index a nil value
stack traceback:
[C]: in function 'draw_animation'
DiscoScience/core/labRenderers.lua:33: in function 'createAnimation'
DiscoScience/core/labRenderers.lua:69: in function 'addLab'
DiscoScience/control.lua:101: in function <DiscoScience/control.lua:100>

The mod Disco Science (1.1.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event DiscoScience::on_built_entity (ID 6)
attempt to index a nil value
stack traceback:
[C]: in function 'draw_animation'
DiscoScience/core/labRenderers.lua:33: in function 'createAnimation'
DiscoScience/core/labRenderers.lua:69: in function 'addLab'
DiscoScience/control.lua:101: in function <DiscoScience/control.lua:100>

meant to mark this as a bug

Same. Assuming it has something to do with the latest Factorio update

The mod Disco Science (1.1.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event DiscoScience::on_configuration_changed
attempt to index a nil value
stack traceback:
[C]: in function 'draw_animation'
DiscoScience/core/labRenderers.lua:33: in function 'createAnimation'
DiscoScience/core/labRenderers.lua:69: in function 'addLab'
DiscoScience/core/labRenderers.lua:98: in function 'reloadLabs'
DiscoScience/control.lua:49: in function 'init'
DiscoScience/control.lua:91: in function <DiscoScience/control.lua:88>

Are you using any other mods? When does this error occur?

This issue was at start up on an existing save, but has since fixed itself after the 1.1.80 release

That's annoying, but I'm glad it's working for you again.

Sorry I haven't tried playing with the mod since I posted the bug.. Just tried now and also works fine for me too.. not sure what caused it?