Update my_model/KBVQA.py

my_model/KBVQA.py

@@ -257,9 +257,12 @@ def prepare_kbvqa_model(only_reload_detection_model: bool = False, force_reload:
   
     if force_reload:
         loading_message = 'Force Reloading model.. this should take no more than a few minutes!'
-        if kbvqa is not None:
+        try:
             del kbvqa
+        except:
             free_gpu_resources()
+            pass
+
         free_gpu_resources()
     else: loading_message = 'Looading model.. this should take no more than a few minutes!'