The mod More Infinite Research (5.0.21014) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event more-infinite-research::on_configuration_changed
more-infinite-research/runtime/worker_robot_storage.lua:739: MIR worker storage history: older default source requires its qualified Base engine and unchanged settings; keep the protected original COPY. Load a separate copy with the previous mod selection and matching MIR settings. Only if that copy has MIR-owned default infinite worker4, run /mir-worker-storage-recovery prepare, then save and exit. Other prior routes require their own verified history; this command cannot infer it; restore the previous mod selection and original save [MIR-WORKER-HISTORY technology=unobserved]
stack traceback:
[C]: in function 'error'
more-infinite-research/runtime/worker_robot_storage.lua:8: in function 'refuse'
more-infinite-research/runtime/worker_robot_storage.lua:234: in function 'recover_error'
more-infinite-research/runtime/worker_robot_storage.lua:739: in function <more-infinite-research/runtime/worker_robot_storage.lua:734>
(...tail calls...)
more-infinite-research/runtime/worker_robot_storage.lua:1008: in function <more-infinite-research/runtime/worker_robot_storage.lua:1003>
(...tail calls...)
more-infinite-research/runtime/bootstrap.lua:376: in function <more-infinite-research/runtime/bootstrap.lua:370>

Now I got this error without any config actually changing

I am pretty sure this is already being worked on. Creator of the mod responded to (very closely) the same issue I had not so long ago after .21014 update.