When I get to the prison in Book 4 love route this message pops up
```
I'm sorry, but an uncaught exception occurred.
While running game code:
File "game/bk4_scripts_zaofu/screen_cellkuvira.rpy", line 88, in <module>
NameError: name 'cell_kuvira_prog' is not defined
-- Full Traceback ------------------------------------------------------------
Full traceback:
File "scripts_older/bjstart.rpyc", line 93, in script call
File "scripts_older/stand_dealerplays.rpyc", line 14, in script call
File "scripts_older/bjstart.rpyc", line 93, in script call
File "scripts_older/stand_dealerplays.rpyc", line 14, in script call
File "scripts_older/bjstart.rpyc", line 93, in script call
File "scripts_older/stand_dealerplays.rpyc", line 14, in script call
File "scripts_older/bjstart.rpyc", line 90, in script call
File "scripts_older/bjstart.rpyc", line 93, in script call
File "scripts_older/stand_dealerplays.rpyc", line 14, in script call
File "scripts_older/bjstart.rpyc", line 93, in script call
File "scripts_older/stand_dealerplays.rpyc", line 14, in script call
File "scripts_older/bjstart.rpyc", line 93, in script call
File "scripts_older/stand_dealerplays.rpyc", line 14, in script call
File "scripts_older/bjstart.rpyc", line 90, in script call
File "scripts_older/bk3_l_maze.rpyc", line 3081, in script call
File "bk4_swamp_scripts/b4l_swamp_stone.rpyc", line 1658, in script call
File "bk4_swamp_scripts/b4l_swamp_benders.rpyc", line 706, in script call
File "bk4_scripts_zaofu/screen_cellkuvira.rpyc", line 88, in script
File "renpy/ast.py", line 1892, in execute
if renpy.python.py_eval(condition):
File "renpy/python.py", line 2249, in py_eval
return py_eval_bytecode(code, globals, locals)
File "renpy/python.py", line 2242, in py_eval_bytecode
return eval(bytecode, globals, locals)
File "game/bk4_scripts_zaofu/screen_cellkuvira.rpy", line 88, in <module>
NameError: name 'cell_kuvira_prog' is not defined
Windows-10-10.0.22000
Ren'Py 7.4.6.1693
Four Elements Trainer 1.0.0f
Mon Aug 8 11:28:43 2022
```
What do I do?