error catching for edge cases and poorly formatted params

app/helpers/solver_helper.py

@@ -1,7 +1,11 @@
 from pulp import lpSum
 from random import randint, sample
+import logging
+
+from lib.errors.item_generation_error import ItemGenerationError
 
 def build_constraints(solver_run, problem, items):
+  try:
     total_form_items = solver_run.total_form_items
     constraints = solver_run.constraints
 
@@ -30,3 +34,6 @@ def build_constraints(solver_run, problem, items):
 
 
     return problem
+  except ValueError as error:
+    logging.error(error)
+    raise ItemGenerationError("Bundle min and/or max larger than bundle amount provided", error.args[0])

app/services/loft_service.py

@@ -19,6 +19,9 @@ class LoftService(Base):
       self.result = self.stream_to_s3_bucket()
     except ItemGenerationError as error:
       self.result = self.stream_to_s3_bucket(error)
+    except TypeError as error:
+      logging.error(error)
+      self.result = self.stream_to_s3_bucket(ItemGenerationError("Provided params causing error in calculation results"))
 
   def retreive_attributes_from_message(self):
     logging.info('Retrieving attributes from message...')