Got the same issue here. Is there a solution to save my game progress? I could also provide you with my save game file.
Error while running event Subsurface::on_tick (ID 0)
Subsurface/scripts/resources.lua:87: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
Subsurface/scripts/resources.lua:87: in function 'prospect_resources'
Subsurface/control.lua:168: in function <Subsurface/control.lua:162>