When the new event to find something started this error jumped out.

The mod Warptorio2 Expansion (1.0.61) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event warptorio2_expansion::on_nth_tick(60)
Value must be a string in property tree at ROOT.caption
stack traceback:
warptorio2_expansion/cameras.lua:90: in function 'CreateCameraForPlayer'
warptorio2_expansion/cameras.lua:108: in function 'CreateCameraForConnectedPlayers'
warptorio2_expansion/control.lua:1990: in function 'on_Entity_Mission_Created'
warptorio2_expansion/control.lua:2236: in function 'Create_Mission_Entity'
warptorio2_expansion/control.lua:2483: in function 'check_events'
warptorio2_expansion/control.lua:1179: in function <warptorio2_expansion/control.lua:1156>
stack traceback:
[C]: in function 'add'
warptorio2_expansion/cameras.lua:90: in function 'CreateCameraForPlayer'
warptorio2_expansion/cameras.lua:108: in function 'CreateCameraForConnectedPlayers'
warptorio2_expansion/control.lua:1990: in function 'on_Entity_Mission_Created'
warptorio2_expansion/control.lua:2236: in function 'Create_Mission_Entity'
warptorio2_expansion/control.lua:2483: in function 'check_events'
warptorio2_expansion/control.lua:1179: in function <warptorio2_expansion/control.lua:1156>

Either error fixed with new patch or couldn't be replicated.
Disregard error.

Its fixed