insert catchall exception handling

BOGClient.py

@@ -47,5 +47,5 @@ async def on_message(self, message: Message):
                 await message.reply('Unable to access replay')
             except (ReadError, ReplayFormatError) as e: # parse errors spawning tool
                 await message.reply('This does not look like a replay')
-            except (KeyError) as e: # needed if gets an SC2Replay arcade file gets uploaded
+            except: # needed if we get an unparsable replay
                 await message.reply('Unable to parse replay')

utils.py

@@ -45,6 +45,11 @@ def arr_to_string(arr: list, cutoff=float('inf')) -> str:
     """
     # removes empty columns from arr
     lst = [col for col in arr if col]
+
+    # catches the error if lst is empty, otherwise max complains
+    if not lst:
+        return ''
+
     max_lines = max([len(col) for col in lst])
     paddings = [len(col[0]) for col in lst]