Update app.py

app.py

@@ -11,7 +11,7 @@ app = FastAPI()
 @app.get("/")
 def start_train():
     space_variables = API.get_space_variables(repo_id=REPO_ID)
-    if 'STATUS' in space_variables and space_variables['STATUS'] != 'COMPUTING':
+    if 'STATUS' not in space_variables or space_variables['STATUS'] != 'COMPUTING':
         print("Beginning processing.")
         API.add_space_variable(repo_id=REPO_ID, key='STATUS', value='COMPUTING')
         os.system(f"./entrypoint.sh {REPO_ID}")