Game Crash - str - 15b

```
I'm sorry, but an uncaught exception occurred.

While running game code:
ScriptError: could not find label 'str_15b'.

-- Full Traceback ------------------------------------------------------------

Full traceback:
  File "script.rpyc", line 89, in script call
  File "calendar_handler.rpyc", line 61, in script call
  File "C:\Users\mf1fa\Downloads\FullService-1.13.1-pc\FullService-1.13.1-pc\renpy\ast.py", line 1436, in execute
    rv = renpy.game.context().call(label, return_site=self.next.name)
  File "script.rpyc", line 89, in script call
  File "calendar_handler.rpyc", line 61, in script call
  File "C:\Users\mf1fa\Downloads\FullService-1.13.1-pc\FullService-1.13.1-pc\renpy\script.py", line 898, in lookup
    raise ScriptError("could not find label '%s'." % str(original))
ScriptError: could not find label 'str_15b'.

Windows-8-6.2.9200
Ren'Py 7.3.5.606
Full Service 1.13.1 1.13.1
Mon Jan 20 08:10:37 2020
```