Question: I have a developer in Nigeria and I am based in the U.S. He has set up sandbox on my website for testing purposes. When he processes a transaction, he gets a successful transaction message. I get a 

```
Error : Order total is missing.
Array
(
[TIMESTAMP] => 2014%2d10%2d27T16%3a18%3a05Z
[CORRELATIONID] => 868f7f8239a35
[ACK] => Failure
[VERSION] => 109%2e0
[BUILD] => 13517841
[L_ERRORCODE0] => 10400
[L_SHORTMESSAGE0] => Transaction%20refused%20because%20of%20an%20invalid%20argument%2e%20See%20additional%20error%20messages%20for%20details%2e
[L_LONGMESSAGE0] => Order%20total%20is%20missing%2e
[L_SEVERITYCODE0] => Error
)

```

We are making the same transaction with the same sandbox paypal account, but he doesnt get any errors and the payment gets processed. I have called paypal 5 times over the last 2 weeks and they have been extremely unhelpful, just asking me to keep checking my e-mail for their response which should be 24-72 hours. Again, its been 2 weeks. 

Any help would be appreciated.

Answer: 
This is a known problem on Ubuntu 14.10 (there's a behavior change in glib). This bug has been fixed and the fix will be available in the next release. You can see this also in resultsets (blank results, even though a table has records).
To solve this, follow the below steps :

```
  1. On the left hand side select "Table Tool".
  2. Click the canvas, which creates a default table.
  3. Select the table, right click it and select "Edit".
  4. Select the "Columns" tab on the bottom.
  5. Double click the "column name" text box and enter a column name.
  6. Click "Apply Changes".. You should see the column in the table now.

```