Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:
#0  0x1473e9a547a2 in ???
#1  0x1473e9a53935 in ???
#2  0x1473e8e705af in ???
#3  0x576a24 in __turb_support_MOD_get_results
	at ../private/turb_support.f90:217
#4  0x57829f in __turb_support_MOD_get_gradt
	at ../private/turb_support.f90:100
#5  0x80838b in eval_gradt
	at ../private/pre_ms_model.f90:739
#6  0x8091de in build1_pre_ms_model
	at ../private/pre_ms_model.f90:493
#7  0x8091de in pre_ms_f
	at ../private/pre_ms_model.f90:296
#8  0xbd9219 in __mod_root_MOD_do_look_for_brackets
	at ../private/mod_root.f:248
#9  0x80ae37 in __pre_ms_model_MOD_build_pre_ms_model
	at ../private/pre_ms_model.f90:221
#10  0x677283 in model_builder
	at ../private/init.f90:1015
#11  0x678174 in __init_MOD_create_pre_ms_model
	at ../private/init.f90:760
#12  0x4bc4a1 in __star_lib_MOD_star_create_pre_ms_model
	at ../public/star_lib.f90:415
#13  0x4cdcdf in do_load1_star
	at ../job/run_star_support.f90:1758
#14  0x4cdcdf in do_before_evolve_loop
	at ../job/run_star_support.f90:323
#15  0x4d3f29 in __run_star_support_MOD_start_run1_star
	at ../job/run_star_support.f90:165
#16  0x4d40a0 in __run_star_support_MOD_run1_star
	at ../job/run_star_support.f90:107
#17  0x42fed8 in __astero_run_support_MOD_eval1
	at ../private/astero_run_support.f90:231
#18  0x433699 in __astero_run_support_MOD_do_run_star_astero
	at ../private/astero_run_support.f90:177
#19  0x41c05f in __astero_lib_MOD_run_star_astero
	at ../public/astero_lib.f90:63
#20  0x40aac3 in run
	at ../src/run.f90:4
#21  0x40ab05 in main
	at ../src/run.f90:2
./rn1: line 6: 507918 Segmentation fault      (core dumped) ./star