Index: leahi_dialin/utils/abstract_classes.py
===================================================================
diff -u -rf1b8b4e9558e9cb95b994044f1d7d247c6c8be3f -r60a4cdf7272161c64bb60aac93b26acf50465494
--- leahi_dialin/utils/abstract_classes.py	(.../abstract_classes.py)	(revision f1b8b4e9558e9cb95b994044f1d7d247c6c8be3f)
+++ leahi_dialin/utils/abstract_classes.py	(.../abstract_classes.py)	(revision 60a4cdf7272161c64bb60aac93b26acf50465494)
@@ -96,7 +96,8 @@
                 print(f'{variable_name}: {value} ({datatype.name})')
                 print(f'pos: {start_pos} - {end_pos}')
             if 'nan' in str(value).lower():
-                raise ValueError(f'{value} is not an accepted value!')
+                value = None
+                # raise ValueError(f'{value} is not an accepted value!')
             if datatype is DataTypes.BOOL:
                 value = True if value == 1 else False
             results[variable_name] = value
@@ -144,7 +145,8 @@
                 print(f'value: {value} ({datatype.name})')
                 print(f'pos: {start_pos} - {end_pos}')
             if 'nan' in str(value).lower():
-                raise ValueError(f'{value} is not an accepted value!')
+                value = None
+                # raise ValueError(f'{value} is not an accepted value!')
             # If the type is Bool, convert the value from Integer to Boolean
             if datatype is DataTypes.BOOL:
                 value = True if value == 1 else False